7985359056 has 40 divisors (see below), whose sum is σ = 21018074400. Its totient is φ = 2611563136.

The previous prime is 7985359049. The next prime is 7985359073. The reversal of 7985359056 is 6509535897.

It is a super-2 number, since 2×7985359056² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7985358987 and 7985359005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1566906 + ... + 1571993.

It is an arithmetic number, because the mean of its divisors is an integer number (525451860).

Almost surely, 2^7985359056 is an apocalyptic number.

It is an amenable number.

7985359056 is an abundant number, since it is smaller than the sum of its proper divisors (13032715344).

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

7985359056 is a wasteful number, since it uses less digits than its factorization.

7985359056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138963 (or 3138957 counting only the distinct ones).

The product of its (nonzero) digits is 10206000, while the sum is 57.

The square root of 7985359056 is about 89360.8362539205. The cubic root of 7985359056 is about 1998.7791762797.

The spelling of 7985359056 in words is "seven billion, nine hundred eighty-five million, three hundred fifty-nine thousand, fifty-six".