89638907904 has 520 divisors, whose sum is σ = 329683163040. Its totient is φ = 23633068032.

The previous prime is 89638907903. The next prime is 89638907933. The reversal of 89638907904 is 40970983698.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (89638907903) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 30190132 + ... + 30193100.

Almost surely, 2^89638907904 is an apocalyptic number.

89638907904 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89638907904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164841581520).

89638907904 is an abundant number, since it is smaller than the sum of its proper divisors (240044255136).

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

89638907904 is a wasteful number, since it uses less digits than its factorization.

89638907904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025 (or 2994 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 89638907904 in words is "eighty-nine billion, six hundred thirty-eight million, nine hundred seven thousand, nine hundred four".