90493640011 has 4 divisors (see below), whose sum is σ = 90562145224. Its totient is φ = 90425134800.

The previous prime is 90493640009. The next prime is 90493640033. The reversal of 90493640011 is 11004639409.

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 90493640011 - 2¹ = 90493640009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90493640071) 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, 34250625 + ... + 34253266.

It is an arithmetic number, because the mean of its divisors is an integer number (22640536306).

Almost surely, 2^90493640011 is an apocalyptic number.

90493640011 is a deficient number, since it is larger than the sum of its proper divisors (68505213).

90493640011 is a wasteful number, since it uses less digits than its factorization.

90493640011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68505212.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 90493640011 in words is "ninety billion, four hundred ninety-three million, six hundred forty thousand, eleven".