89902109808 has 240 divisors, whose sum is σ = 297984261120. Its totient is φ = 24756834816.

The previous prime is 89902109789. The next prime is 89902109813. The reversal of 89902109808 is 80890120998.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18793785 + ... + 18798567.

It is an arithmetic number, because the mean of its divisors is an integer number (1241601088).

Almost surely, 2^89902109808 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 89902109808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148992130560).

89902109808 is an abundant number, since it is smaller than the sum of its proper divisors (208082151312).

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

89902109808 is a wasteful number, since it uses less digits than its factorization.

89902109808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5476 (or 5467 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 54.

The spelling of 89902109808 in words is "eighty-nine billion, nine hundred two million, one hundred nine thousand, eight hundred eight".