1260147799872 has 224 divisors, whose sum is σ = 4086880076160. Its totient is φ = 378280488960.

The previous prime is 1260147799817. The next prime is 1260147799891. The reversal of 1260147799872 is 2789977410621.

1260147799872 is a `hidden beast` number, since 1 + 2 + 6 + 0 + 1 + 477 + 9 + 98 + 72 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236923 + ... + 1605125.

It is an arithmetic number, because the mean of its divisors is an integer number (18245000340).

Almost surely, 2^{1260147799872} is an apocalyptic number.

1260147799872 is a gapful number since it is divisible by the number (12) 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 1260147799872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2043440038080).

1260147799872 is an abundant number, since it is smaller than the sum of its proper divisors (2826732276288).

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

1260147799872 is a wasteful number, since it uses less digits than its factorization.

1260147799872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368278 (or 1368262 counting only the distinct ones).

The product of its (nonzero) digits is 21337344, while the sum is 63.

The spelling of 1260147799872 in words is "one trillion, two hundred sixty billion, one hundred forty-seven million, seven hundred ninety-nine thousand, eight hundred seventy-two".