90464762091220 has 96 divisors (see below), whose sum is σ = 212314864164480. Its totient is φ = 32093576040960.

The previous prime is 90464762091157. The next prime is 90464762091293. The reversal of 90464762091220 is 2219026746409.

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, 2463946 + ... + 13674814.

It is an arithmetic number, because the mean of its divisors is an integer number (2211613168380).

Almost surely, 2^{90464762091220} 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 90464762091220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106157432082240).

90464762091220 is an abundant number, since it is smaller than the sum of its proper divisors (121850102073260).

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

90464762091220 is a wasteful number, since it uses less digits than its factorization.

90464762091220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11211785 (or 11211783 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 90464762091220 in words is "ninety trillion, four hundred sixty-four billion, seven hundred sixty-two million, ninety-one thousand, two hundred twenty".