7920672556 has 48 divisors (see below), whose sum is σ = 14461493760. Its totient is φ = 3792850880.

The previous prime is 7920672523. The next prime is 7920672563. The reversal of 7920672556 is 6552760297.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4891515 + ... + 4893133.

It is an arithmetic number, because the mean of its divisors is an integer number (301281120).

Almost surely, 2^7920672556 is an apocalyptic number.

It is an amenable number.

7920672556 is a deficient number, since it is larger than the sum of its proper divisors (6540821204).

7920672556 is a wasteful number, since it uses less digits than its factorization.

7920672556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214 (or 2212 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 49.

The square root of 7920672556 is about 88998.1604079545. The cubic root of 7920672556 is about 1993.3674083453.

The spelling of 7920672556 in words is "seven billion, nine hundred twenty million, six hundred seventy-two thousand, five hundred fifty-six".