88689557448 has 60 divisors (see below), whose sum is σ = 248434116315. Its totient is φ = 29560658832.

The previous prime is 88689557443. The next prime is 88689557519. The reversal of 88689557448 is 84475598688.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

88689557448 is a `hidden beast` number, since 8 + 8 + 6 + 8 + 9 + 5 + 574 + 48 = 666.

It can be written as a sum of positive squares in only one way, i.e., 44344778724 + 44344778724 = 210582^2 + 210582^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=210582.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (88689557441) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 7575103 + ... + 7586801.

Almost surely, 2^88689557448 is an apocalyptic number.

It is an amenable number.

88689557448 is an abundant number, since it is smaller than the sum of its proper divisors (159744558867).

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

88689557448 is an frugal number, since it uses more digits than its factorization.

88689557448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23416 (or 11704 counting only the distinct ones).

The product of its digits is 619315200, while the sum is 72.

Multiplying 88689557448 by its sum of digits (72), we get a square (6385648136256 = 2526984²).

88689557448 divided by its sum of digits (72) gives a square (1231799409 = 35097²).

The spelling of 88689557448 in words is "eighty-eight billion, six hundred eighty-nine million, five hundred fifty-seven thousand, four hundred forty-eight".