90974568089 has 4 divisors (see below), whose sum is σ = 91011567120. Its totient is φ = 90937569060.

The previous prime is 90974568011. The next prime is 90974568103. The reversal of 90974568089 is 98086547909.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90974568089 - 2²⁴ = 90957790873 is a prime.

It is a super-2 number, since 2×90974568089² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90974568889) 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 3 ways as a sum of consecutive naturals, for example, 18495827 + ... + 18500744.

It is an arithmetic number, because the mean of its divisors is an integer number (22752891780).

Almost surely, 2^90974568089 is an apocalyptic number.

It is an amenable number.

90974568089 is a deficient number, since it is larger than the sum of its proper divisors (36999031).

90974568089 is a wasteful number, since it uses less digits than its factorization.

90974568089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36999030.

The product of its (nonzero) digits is 39191040, while the sum is 65.

The spelling of 90974568089 in words is "ninety billion, nine hundred seventy-four million, five hundred sixty-eight thousand, eighty-nine".