89591701212 has 96 divisors (see below), whose sum is σ = 250622408960. Its totient is φ = 27513743040.

The previous prime is 89591701189. The next prime is 89591701273. The reversal of 89591701212 is 21210719598.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 673287 + ... + 795297.

Almost surely, 2^89591701212 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 89591701212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125311204480).

89591701212 is an abundant number, since it is smaller than the sum of its proper divisors (161030707748).

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

89591701212 is a wasteful number, since it uses less digits than its factorization.

89591701212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122560 (or 122552 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 45.

It can be divided in two parts, 8959 and 1701212, that added together give a palindrome (1710171).

The spelling of 89591701212 in words is "eighty-nine billion, five hundred ninety-one million, seven hundred one thousand, two hundred twelve".