1242775822080 has 432 divisors, whose sum is σ = 4330308759840. Its totient is φ = 301966000128.

The previous prime is 1242775822073. The next prime is 1242775822081. The reversal of 1242775822080 is 802285772421.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242775822081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 311548726 + ... + 311552714.

It is an arithmetic number, because the mean of its divisors is an integer number (10023862870).

Almost surely, 2^{1242775822080} is an apocalyptic number.

1242775822080 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 1242775822080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2165154379920).

1242775822080 is an abundant number, since it is smaller than the sum of its proper divisors (3087532937760).

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

1242775822080 is an equidigital number, since it uses as much as digits as its factorization.

1242775822080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4184 (or 4091 counting only the distinct ones).

The product of its (nonzero) digits is 1003520, while the sum is 48.

The spelling of 1242775822080 in words is "one trillion, two hundred forty-two billion, seven hundred seventy-five million, eight hundred twenty-two thousand, eighty".