20323774967 has 2 divisors, whose sum is σ = 20323774968. Its totient is φ = 20323774966.

The previous prime is 20323774963. The next prime is 20323775053. The reversal of 20323774967 is 76947732302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20323774967 - 2² = 20323774963 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20323774963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161887483 + 10161887484.

It is an arithmetic number, because the mean of its divisors is an integer number (10161887484).

Almost surely, 2^20323774967 is an apocalyptic number.

20323774967 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323774967 is an equidigital number, since it uses as much as digits as its factorization.

20323774967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2667168, while the sum is 50.

The spelling of 20323774967 in words is "twenty billion, three hundred twenty-three million, seven hundred seventy-four thousand, nine hundred sixty-seven".