90783009632 has 96 divisors (see below), whose sum is σ = 213245524800. Its totient is φ = 37220456448.

The previous prime is 90783009593. The next prime is 90783009637. The reversal of 90783009632 is 23690038709.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90783009637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 643958 + ... + 772170.

It is an arithmetic number, because the mean of its divisors is an integer number (2221307550).

Almost surely, 2^90783009632 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 90783009632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106622762400).

90783009632 is an abundant number, since it is smaller than the sum of its proper divisors (122462515168).

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

90783009632 is a wasteful number, since it uses less digits than its factorization.

90783009632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128368 (or 128360 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 47.

The spelling of 90783009632 in words is "ninety billion, seven hundred eighty-three million, nine thousand, six hundred thirty-two".