7975798980492 has 24 divisors (see below), whose sum is σ = 21268797281536. Its totient is φ = 2278799708688.

The previous prime is 7975798980481. The next prime is 7975798980493. The reversal of 7975798980492 is 2940898975797.

It is a happy number.

It is a super-2 number, since 2×7975798980492² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (84), and also a Moran number because the ratio is a prime number: 94949987863 = 7975798980492 / (7 + 9 + 7 + 5 + 7 + 9 + 8 + 9 + 8 + 0 + 4 + 9 + 2).

It is not an unprimeable number, because it can be changed into a prime (7975798980493) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 47474993848 + ... + 47474994015.

Almost surely, 2^{7975798980492} is an apocalyptic number.

It is an amenable number.

7975798980492 is an abundant number, since it is smaller than the sum of its proper divisors (13292998301044).

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

7975798980492 is a wasteful number, since it uses less digits than its factorization.

7975798980492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94949987877 (or 94949987875 counting only the distinct ones).

The product of its (nonzero) digits is 5761082880, while the sum is 84.

The spelling of 7975798980492 in words is "seven trillion, nine hundred seventy-five billion, seven hundred ninety-eight million, nine hundred eighty thousand, four hundred ninety-two".