90941364931 has 4 divisors (see below), whose sum is σ = 91341987912. Its totient is φ = 90540741952.

The previous prime is 90941364929. The next prime is 90941364937. The reversal of 90941364931 is 13946314909.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90941364931 - 2¹ = 90941364929 is a prime.

It is a super-2 number, since 2×90941364931² (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 (90941364937) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 200311150 + ... + 200311603.

It is an arithmetic number, because the mean of its divisors is an integer number (22835496978).

Almost surely, 2^90941364931 is an apocalyptic number.

90941364931 is a deficient number, since it is larger than the sum of its proper divisors (400622981).

90941364931 is a wasteful number, since it uses less digits than its factorization.

90941364931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400622980.

The product of its (nonzero) digits is 629856, while the sum is 49.

The spelling of 90941364931 in words is "ninety billion, nine hundred forty-one million, three hundred sixty-four thousand, nine hundred thirty-one".