90410888640 has 56 divisors (see below), whose sum is σ = 287054574480. Its totient is φ = 24109570048.

The previous prime is 90410888629. The next prime is 90410888641. The reversal of 90410888640 is 4688801409.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 90410888640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90410888641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47088045 + ... + 47089964.

Almost surely, 2^90410888640 is an apocalyptic number.

It is an amenable number.

90410888640 is an abundant number, since it is smaller than the sum of its proper divisors (196643685840).

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

90410888640 is a wasteful number, since it uses less digits than its factorization.

90410888640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94178029 (or 94178019 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 90410888640 in words is "ninety billion, four hundred ten million, eight hundred eighty-eight thousand, six hundred forty".