7940318856 has 16 divisors (see below), whose sum is σ = 19850797200. Its totient is φ = 2646772944.

The previous prime is 7940318797. The next prime is 7940318887. The reversal of 7940318856 is 6588130497.

It is a junction number, because it is equal to n+sod(n) for n = 7940318799 and 7940318808.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165423286 + ... + 165423333.

It is an arithmetic number, because the mean of its divisors is an integer number (1240674825).

Almost surely, 2^7940318856 is an apocalyptic number.

It is an amenable number.

7940318856 is an abundant number, since it is smaller than the sum of its proper divisors (11910478344).

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

7940318856 is a wasteful number, since it uses less digits than its factorization.

7940318856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330846628 (or 330846624 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The square root of 7940318856 is about 89108.4668031046. The cubic root of 7940318856 is about 1995.0141523233.

The spelling of 7940318856 in words is "seven billion, nine hundred forty million, three hundred eighteen thousand, eight hundred fifty-six".