20486606923 has 16 divisors (see below), whose sum is σ = 21344564736. Its totient is φ = 19645079040.

The previous prime is 20486606837. The next prime is 20486606927. The reversal of 20486606923 is 32960668402.

It is a cyclic number.

It is not a de Polignac number, because 20486606923 - 2²⁵ = 20453052491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20486606927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5700015 + ... + 5703607.

It is an arithmetic number, because the mean of its divisors is an integer number (1334035296).

Almost surely, 2^20486606923 is an apocalyptic number.

20486606923 is a deficient number, since it is larger than the sum of its proper divisors (857957813).

20486606923 is a wasteful number, since it uses less digits than its factorization.

20486606923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5814.

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 20486606923 in words is "twenty billion, four hundred eighty-six million, six hundred six thousand, nine hundred twenty-three".