7912097556 has 96 divisors (see below), whose sum is σ = 20364825600. Its totient is φ = 2390708320.

The previous prime is 7912097539. The next prime is 7912097561. The reversal of 7912097556 is 6557902197.

It is a super-2 number, since 2×7912097556² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7912097499 and 7912097508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9566815 + ... + 9567641.

It is an arithmetic number, because the mean of its divisors is an integer number (212133600).

Almost surely, 2^7912097556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7912097556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10182412800).

7912097556 is an abundant number, since it is smaller than the sum of its proper divisors (12452728044).

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

7912097556 is a wasteful number, since it uses less digits than its factorization.

7912097556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466 (or 1442 counting only the distinct ones).

The product of its (nonzero) digits is 1190700, while the sum is 51.

The square root of 7912097556 is about 88949.9722091019. The cubic root of 7912097556 is about 1992.6478020444.

The spelling of 7912097556 in words is "seven billion, nine hundred twelve million, ninety-seven thousand, five hundred fifty-six".