90651675091 has 4 divisors (see below), whose sum is σ = 90710887384. Its totient is φ = 90592462800.

The previous prime is 90651675019. The next prime is 90651675167. The reversal of 90651675091 is 19057615609.

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 90651675091 - 2¹¹ = 90651673043 is a prime.

It is a super-3 number, since 3×90651675091³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90651675391) 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, 29603850 + ... + 29606911.

It is an arithmetic number, because the mean of its divisors is an integer number (22677721846).

Almost surely, 2^90651675091 is an apocalyptic number.

90651675091 is a deficient number, since it is larger than the sum of its proper divisors (59212293).

90651675091 is a wasteful number, since it uses less digits than its factorization.

90651675091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59212292.

The product of its (nonzero) digits is 510300, while the sum is 49.

The spelling of 90651675091 in words is "ninety billion, six hundred fifty-one million, six hundred seventy-five thousand, ninety-one".