20590117022939 has 2 divisors, whose sum is σ = 20590117022940. Its totient is φ = 20590117022938.

The previous prime is 20590117022899. The next prime is 20590117022963. The reversal of 20590117022939 is 93922071109502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20590117022939 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20590117022999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10295058511469 + 10295058511470.

It is an arithmetic number, because the mean of its divisors is an integer number (10295058511470).

Almost surely, 2^{20590117022939} is an apocalyptic number.

20590117022939 is a deficient number, since it is larger than the sum of its proper divisors (1).

20590117022939 is an equidigital number, since it uses as much as digits as its factorization.

20590117022939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 612360, while the sum is 50.

The spelling of 20590117022939 in words is "twenty trillion, five hundred ninety billion, one hundred seventeen million, twenty-two thousand, nine hundred thirty-nine".