88613861391 has 24 divisors (see below), whose sum is σ = 140110575696. Its totient is φ = 53522058240.

The previous prime is 88613861389. The next prime is 88613861407. The reversal of 88613861391 is 19316831688.

88613861391 is a `hidden beast` number, since 8 + 8 + 6 + 13 + 8 + 613 + 9 + 1 = 666.

It is not a de Polignac number, because 88613861391 - 2¹ = 88613861389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88613861381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1498450 + ... + 1556463.

It is an arithmetic number, because the mean of its divisors is an integer number (5837940654).

Almost surely, 2^88613861391 is an apocalyptic number.

88613861391 is a deficient number, since it is larger than the sum of its proper divisors (51496714305).

88613861391 is a wasteful number, since it uses less digits than its factorization.

88613861391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055223 (or 3055220 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The spelling of 88613861391 in words is "eighty-eight billion, six hundred thirteen million, eight hundred sixty-one thousand, three hundred ninety-one".