89137904856 has 768 divisors, whose sum is σ = 323610992640. Its totient is φ = 19797073920.

The previous prime is 89137904789. The next prime is 89137904861. The reversal of 89137904856 is 65840973198.

It is a self number, because there is not a number n which added to its sum of digits gives 89137904856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 546858231 + ... + 546858393.

It is an arithmetic number, because the mean of its divisors is an integer number (421368480).

Almost surely, 2^89137904856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89137904856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161805496320).

89137904856 is an abundant number, since it is smaller than the sum of its proper divisors (234473087784).

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

89137904856 is a wasteful number, since it uses less digits than its factorization.

89137904856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 60.

The spelling of 89137904856 in words is "eighty-nine billion, one hundred thirty-seven million, nine hundred four thousand, eight hundred fifty-six".