7980904956 has 48 divisors (see below), whose sum is σ = 18694368000. Its totient is φ = 2650002432.

The previous prime is 7980904933. The next prime is 7980904973. The reversal of 7980904956 is 6594090897.

It is a junction number, because it is equal to n+sod(n) for n = 7980904896 and 7980904905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6050065 + ... + 6051383.

It is an arithmetic number, because the mean of its divisors is an integer number (389466000).

Almost surely, 2^7980904956 is an apocalyptic number.

It is an amenable number.

7980904956 is an abundant number, since it is smaller than the sum of its proper divisors (10713463044).

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

7980904956 is a wasteful number, since it uses less digits than its factorization.

7980904956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2898 (or 2896 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 57.

The square root of 7980904956 is about 89335.9107862006. The cubic root of 7980904956 is about 1998.4074786077.

The spelling of 7980904956 in words is "seven billion, nine hundred eighty million, nine hundred four thousand, nine hundred fifty-six".