7983156479256 has 48 divisors (see below), whose sum is σ = 24709770056400. Its totient is φ = 2280901851072.

The previous prime is 7983156479197. The next prime is 7983156479257. The reversal of 7983156479256 is 6529746513897.

7983156479256 is a `hidden beast` number, since 7 + 9 + 8 + 3 + 1 + 564 + 7 + 9 + 2 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7983156479257) 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 11 ways as a sum of consecutive naturals, for example, 7919797591 + ... + 7919798598.

It is an arithmetic number, because the mean of its divisors is an integer number (514786876175).

Almost surely, 2^{7983156479256} is an apocalyptic number.

It is an amenable number.

7983156479256 is an abundant number, since it is smaller than the sum of its proper divisors (16726613577144).

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

7983156479256 is a wasteful number, since it uses less digits than its factorization.

7983156479256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15839596208 (or 15839596201 counting only the distinct ones).

The product of its digits is 685843200, while the sum is 72.

The spelling of 7983156479256 in words is "seven trillion, nine hundred eighty-three billion, one hundred fifty-six million, four hundred seventy-nine thousand, two hundred fifty-six".