90840174264 has 96 divisors (see below), whose sum is σ = 281370417120. Its totient is φ = 25936017408.

The previous prime is 90840174263. The next prime is 90840174281. The reversal of 90840174264 is 46247104809.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90840174263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 659344 + ... + 785120.

It is an arithmetic number, because the mean of its divisors is an integer number (2930941845).

Almost surely, 2^90840174264 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 90840174264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140685208560).

90840174264 is an abundant number, since it is smaller than the sum of its proper divisors (190530242856).

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

90840174264 is a wasteful number, since it uses less digits than its factorization.

90840174264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127229 (or 127222 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 90840174264 in words is "ninety billion, eight hundred forty million, one hundred seventy-four thousand, two hundred sixty-four".