90369775331 has 8 divisors (see below), whose sum is σ = 98628156144. Its totient is φ = 82118552320.

The previous prime is 90369775289. The next prime is 90369775399. The reversal of 90369775331 is 13357796309.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90369775331 is a prime.

It is a super-2 number, since 2×90369775331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90369775631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1763030 + ... + 1813563.

It is an arithmetic number, because the mean of its divisors is an integer number (12328519518).

Almost surely, 2^90369775331 is an apocalyptic number.

90369775331 is a deficient number, since it is larger than the sum of its proper divisors (8258380813).

90369775331 is a wasteful number, since it uses less digits than its factorization.

90369775331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3578901.

The product of its (nonzero) digits is 3214890, while the sum is 53.

The spelling of 90369775331 in words is "ninety billion, three hundred sixty-nine million, seven hundred seventy-five thousand, three hundred thirty-one".