7920654872 has 32 divisors (see below), whose sum is σ = 16025158800. Its totient is φ = 3648480384.

The previous prime is 7920654869. The next prime is 7920654893. The reversal of 7920654872 is 2784560297.

It is a self number, because there is not a number n which added to its sum of digits gives 7920654872.

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, 21878 + ... + 127749.

Almost surely, 2^7920654872 is an apocalyptic number.

It is an amenable number.

7920654872 is an abundant number, since it is smaller than the sum of its proper divisors (8104503928).

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

7920654872 is a wasteful number, since it uses less digits than its factorization.

7920654872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150155 (or 150151 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 50.

The square root of 7920654872 is about 88998.0610575309. The cubic root of 7920654872 is about 1993.3659248545.

The spelling of 7920654872 in words is "seven billion, nine hundred twenty million, six hundred fifty-four thousand, eight hundred seventy-two".