7925921272 has 16 divisors (see below), whose sum is σ = 15064680240. Its totient is φ = 3908673216.

The previous prime is 7925921261. The next prime is 7925921303. The reversal of 7925921272 is 2721295297.

It is a happy number.

It is a congruent number.

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, 6785308 + ... + 6786475.

It is an arithmetic number, because the mean of its divisors is an integer number (941542515).

Almost surely, 2^7925921272 is an apocalyptic number.

It is an amenable number.

7925921272 is a deficient number, since it is larger than the sum of its proper divisors (7138758968).

7925921272 is a wasteful number, since it uses less digits than its factorization.

7925921272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13571862 (or 13571858 counting only the distinct ones).

The product of its digits is 317520, while the sum is 46.

The square root of 7925921272 is about 89027.6433025159. The cubic root of 7925921272 is about 1993.8076196671.

The spelling of 7925921272 in words is "seven billion, nine hundred twenty-five million, nine hundred twenty-one thousand, two hundred seventy-two".