78150015872488 has 48 divisors (see below), whose sum is σ = 170593448919300. Its totient is φ = 33465611612160.

The previous prime is 78150015872477. The next prime is 78150015872521. The reversal of 78150015872488 is 88427851005187.

It can be written as a sum of positive squares in 2 ways, for example, as 63473439548484 + 14676576324004 = 7967022^2 + 3831002^2 .

It is a super-2 number, since 2×78150015872488² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80625753 + ... + 81589288.

Almost surely, 2^{78150015872488} is an apocalyptic number.

It is an amenable number.

78150015872488 is an abundant number, since it is smaller than the sum of its proper divisors (92443433046812).

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

78150015872488 is a wasteful number, since it uses less digits than its factorization.

78150015872488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162216290 (or 162216279 counting only the distinct ones).

The product of its (nonzero) digits is 40140800, while the sum is 64.

The spelling of 78150015872488 in words is "seventy-eight trillion, one hundred fifty billion, fifteen million, eight hundred seventy-two thousand, four hundred eighty-eight".