90231748996 has 9 divisors (see below), whose sum is σ = 157906612101. Its totient is φ = 45115574112.

The previous prime is 90231748993. The next prime is 90231749063. The reversal of 90231748996 is 69984713209.

The square root of 90231748996 is 300386.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 16212928900 + 74018820096 = 127330^2 + 272064^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90231748996.

It is not an unprimeable number, because it can be changed into a prime (90231748993) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 525676 + ... + 675868.

Almost surely, 2^90231748996 is an apocalyptic number.

90231748996 is the 300386-th square number.

It is an amenable number.

90231748996 is a deficient number, since it is larger than the sum of its proper divisors (67674863105).

90231748996 is an frugal number, since it uses more digits than its factorization.

90231748996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300390 (or 150195 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 58.

The spelling of 90231748996 in words is "ninety billion, two hundred thirty-one million, seven hundred forty-eight thousand, nine hundred ninety-six".