90911763144 has 48 divisors (see below), whose sum is σ = 248016607020. Its totient is φ = 30082721280.

The previous prime is 90911763113. The next prime is 90911763191. The reversal of 90911763144 is 44136711909.

It is a happy number.

90911763144 is a `hidden beast` number, since 9 + 0 + 9 + 1 + 1 + 7 + 631 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 84586742244 + 6325020900 = 290838^2 + 79530^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 90911763144.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4598397 + ... + 4618124.

Almost surely, 2^90911763144 is an apocalyptic number.

It is an amenable number.

90911763144 is an abundant number, since it is smaller than the sum of its proper divisors (157104843876).

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

90911763144 is a wasteful number, since it uses less digits than its factorization.

90911763144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9216670 (or 9216663 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 90911763144 in words is "ninety billion, nine hundred eleven million, seven hundred sixty-three thousand, one hundred forty-four".