89208992556 has 36 divisors (see below), whose sum is σ = 227221898904. Its totient is φ = 29509334400.

The previous prime is 89208992513. The next prime is 89208992581. The reversal of 89208992556 is 65529980298.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 89208992493 and 89208992502.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9453405 + ... + 9462836.

It is an arithmetic number, because the mean of its divisors is an integer number (6311719414).

Almost surely, 2^89208992556 is an apocalyptic number.

It is an amenable number.

89208992556 is an abundant number, since it is smaller than the sum of its proper divisors (138012906348).

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

89208992556 is a wasteful number, since it uses less digits than its factorization.

89208992556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18916382 (or 18916377 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 63.

The spelling of 89208992556 in words is "eighty-nine billion, two hundred eight million, nine hundred ninety-two thousand, five hundred fifty-six".