7120905928 has 16 divisors (see below), whose sum is σ = 13377937500. Its totient is φ = 3553455936.

The previous prime is 7120905917. The next prime is 7120905989. The reversal of 7120905928 is 8295090217.

It can be written as a sum of positive squares in 2 ways, for example, as 6935891524 + 185014404 = 83282^2 + 13602^2 .

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, 870303 + ... + 878446.

Almost surely, 2^7120905928 is an apocalyptic number.

It is an amenable number.

7120905928 is a deficient number, since it is larger than the sum of its proper divisors (6257031572).

7120905928 is a wasteful number, since it uses less digits than its factorization.

7120905928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749264 (or 1749260 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 7120905928 is about 84385.4604063994. The cubic root of 7120905928 is about 1923.8819326670.

The spelling of 7120905928 in words is "seven billion, one hundred twenty million, nine hundred five thousand, nine hundred twenty-eight".