1278359470080 has 1792 divisors, whose sum is σ = 5776223443200. Its totient is φ = 263722106880.

The previous prime is 1278359470051. The next prime is 1278359470081. The reversal of 1278359470080 is 800749538721.

It is a happy number.

1278359470080 is a `hidden beast` number, since 12 + 7 + 83 + 5 + 9 + 470 + 0 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (1792).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1278359469999 and 1278359470026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1278359470081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 9196830651 + ... + 9196830789.

It is an arithmetic number, because the mean of its divisors is an integer number (3223338975).

Almost surely, 2^{1278359470080} is an apocalyptic number.

1278359470080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1278359470080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2888111721600).

1278359470080 is an abundant number, since it is smaller than the sum of its proper divisors (4497863973120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1278359470080 is an frugal number, since it uses more digits than its factorization.

1278359470080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 1278359470080 in words is "one trillion, two hundred seventy-eight billion, three hundred fifty-nine million, four hundred seventy thousand, eighty".