89725578102 has 48 divisors (see below), whose sum is σ = 195140211552. Its totient is φ = 29795592960.

The previous prime is 89725578101. The next prime is 89725578119. The reversal of 89725578102 is 20187552798.

89725578102 is a `hidden beast` number, since 8 + 9 + 7 + 2 + 557 + 81 + 0 + 2 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89725578101) 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, 13639038 + ... + 13645614.

It is an arithmetic number, because the mean of its divisors is an integer number (4065421074).

Almost surely, 2^89725578102 is an apocalyptic number.

89725578102 is an abundant number, since it is smaller than the sum of its proper divisors (105414633450).

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

89725578102 is a wasteful number, since it uses less digits than its factorization.

89725578102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9333 (or 9330 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 54.

The spelling of 89725578102 in words is "eighty-nine billion, seven hundred twenty-five million, five hundred seventy-eight thousand, one hundred two".