7915709472 has 96 divisors (see below), whose sum is σ = 23860811520. Its totient is φ = 2272446720.

The previous prime is 7915709443. The next prime is 7915709479. The reversal of 7915709472 is 2749075197.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×7915709472² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (7915709479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177198 + ... + 217325.

It is an arithmetic number, because the mean of its divisors is an integer number (248550120).

Almost surely, 2^7915709472 is an apocalyptic number.

It is an amenable number.

7915709472 is an abundant number, since it is smaller than the sum of its proper divisors (15945102048).

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

7915709472 is a wasteful number, since it uses less digits than its factorization.

7915709472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394566 (or 394558 counting only the distinct ones).

The product of its (nonzero) digits is 1111320, while the sum is 51.

The square root of 7915709472 is about 88970.2729679976. The cubic root of 7915709472 is about 1992.9509741387.

The spelling of 7915709472 in words is "seven billion, nine hundred fifteen million, seven hundred nine thousand, four hundred seventy-two".