7715480872 has 32 divisors (see below), whose sum is σ = 16710001920. Its totient is φ = 3300739840.

The previous prime is 7715480863. The next prime is 7715480881. The reversal of 7715480872 is 2780845177.

It is an interprime number because it is at equal distance from previous prime (7715480863) and next prime (7715480881).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2577208 + ... + 2580199.

It is an arithmetic number, because the mean of its divisors is an integer number (522187560).

Almost surely, 2^7715480872 is an apocalyptic number.

It is an amenable number.

7715480872 is an abundant number, since it is smaller than the sum of its proper divisors (8994521048).

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

7715480872 is a wasteful number, since it uses less digits than its factorization.

7715480872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5157441 (or 5157437 counting only the distinct ones).

The product of its (nonzero) digits is 878080, while the sum is 49.

The square root of 7715480872 is about 87837.8100364530. The cubic root of 7715480872 is about 1976.0033034688.

The spelling of 7715480872 in words is "seven billion, seven hundred fifteen million, four hundred eighty thousand, eight hundred seventy-two".