90937069961 has 4 divisors (see below), whose sum is σ = 91334175300. Its totient is φ = 90539964624.

The previous prime is 90937069933. The next prime is 90937069991. The reversal of 90937069961 is 16996073909.

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

It can be written as a sum of positive squares in 2 ways, for example, as 50977059961 + 39960010000 = 225781^2 + 199900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90937069961 is a prime.

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 90937069961.

It is not an unprimeable number, because it can be changed into a prime (90937069991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198552326 + ... + 198552783.

It is an arithmetic number, because the mean of its divisors is an integer number (22833543825).

Almost surely, 2^90937069961 is an apocalyptic number.

It is an amenable number.

90937069961 is a deficient number, since it is larger than the sum of its proper divisors (397105339).

90937069961 is a wasteful number, since it uses less digits than its factorization.

90937069961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397105338.

The product of its (nonzero) digits is 4960116, while the sum is 59.

The spelling of 90937069961 in words is "ninety billion, nine hundred thirty-seven million, sixty-nine thousand, nine hundred sixty-one".