7165772928 has 48 divisors (see below), whose sum is σ = 20620261350. Its totient is φ = 2388590592.

The previous prime is 7165772923. The next prime is 7165772941. The reversal of 7165772928 is 8292775617.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7124710464 + 41062464 = 84408^2 + 6408^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (7165772923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3108993 + ... + 3111296.

Almost surely, 2^7165772928 is an apocalyptic number.

It is an amenable number.

7165772928 is an abundant number, since it is smaller than the sum of its proper divisors (13454488422).

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

7165772928 is a wasteful number, since it uses less digits than its factorization.

7165772928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6220309 (or 6220294 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 54.

The square root of 7165772928 is about 84650.8885245749. Note that the first 3 decimals coincide. The cubic root of 7165772928 is about 1927.9141046310.

The spelling of 7165772928 in words is "seven billion, one hundred sixty-five million, seven hundred seventy-two thousand, nine hundred twenty-eight".