7910721252 has 48 divisors (see below), whose sum is σ = 23439176320. Its totient is φ = 2260205856.

The previous prime is 7910721241. The next prime is 7910721271. The reversal of 7910721252 is 2521270197.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5231203 + ... + 5232714.

Almost surely, 2^7910721252 is an apocalyptic number.

It is an amenable number.

7910721252 is an abundant number, since it is smaller than the sum of its proper divisors (15528455068).

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

7910721252 is a wasteful number, since it uses less digits than its factorization.

7910721252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10463937 (or 10463929 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 7910721252 is about 88942.2354789894. The cubic root of 7910721252 is about 1992.5322554335.

The spelling of 7910721252 in words is "seven billion, nine hundred ten million, seven hundred twenty-one thousand, two hundred fifty-two".