88991644685 has 16 divisors (see below), whose sum is σ = 108194711040. Its totient is φ = 70257707520.

The previous prime is 88991644673. The next prime is 88991644711. The reversal of 88991644685 is 58644619988.

It is not a de Polignac number, because 88991644685 - 2¹⁸ = 88991382541 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767864 + ... + 876126.

It is an arithmetic number, because the mean of its divisors is an integer number (6762169440).

Almost surely, 2^88991644685 is an apocalyptic number.

It is an amenable number.

88991644685 is a deficient number, since it is larger than the sum of its proper divisors (19203066355).

88991644685 is a wasteful number, since it uses less digits than its factorization.

88991644685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110428.

The product of its digits is 119439360, while the sum is 68.

The spelling of 88991644685 in words is "eighty-eight billion, nine hundred ninety-one million, six hundred forty-four thousand, six hundred eighty-five".