88681851513 has 12 divisors (see below), whose sum is σ = 132840304688. Its totient is φ = 59121234180.

The previous prime is 88681851499. The next prime is 88681851527. The reversal of 88681851513 is 31515818688.

88681851513 is a `hidden beast` number, since 8 + 8 + 68 + 18 + 51 + 513 = 666.

It is an interprime number because it is at equal distance from previous prime (88681851499) and next prime (88681851527).

It is not a de Polignac number, because 88681851513 - 2⁵ = 88681851481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88681851513.

It is not an unprimeable number, because it can be changed into a prime (88681851413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182472703 + ... + 182473188.

Almost surely, 2^88681851513 is an apocalyptic number.

It is an amenable number.

88681851513 is a deficient number, since it is larger than the sum of its proper divisors (44158453175).

88681851513 is an equidigital number, since it uses as much as digits as its factorization.

88681851513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364945906 (or 364945894 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 54.

The spelling of 88681851513 in words is "eighty-eight billion, six hundred eighty-one million, eight hundred fifty-one thousand, five hundred thirteen".