20373774723 has 10 divisors (see below), whose sum is σ = 30434898164. Its totient is φ = 13582516428.

The previous prime is 20373774703. The next prime is 20373774737. The reversal of 20373774723 is 32747737302.

20373774723 is a `hidden beast` number, since 203 + 7 + 377 + 4 + 72 + 3 = 666.

It is not a de Polignac number, because 20373774723 - 2⁵ = 20373774691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20373774703) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 125763961 + ... + 125764122.

Almost surely, 2^20373774723 is an apocalyptic number.

20373774723 is a deficient number, since it is larger than the sum of its proper divisors (10061123441).

20373774723 is an equidigital number, since it uses as much as digits as its factorization.

20373774723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251528095 (or 251528086 counting only the distinct ones).

The product of its (nonzero) digits is 1037232, while the sum is 45.

The spelling of 20373774723 in words is "twenty billion, three hundred seventy-three million, seven hundred seventy-four thousand, seven hundred twenty-three".