2117708959 has 2 divisors, whose sum is σ = 2117708960. Its totient is φ = 2117708958.

The previous prime is 2117708951. The next prime is 2117709017. The reversal of 2117708959 is 9598077112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2117708959 - 2³ = 2117708951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2117708951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058854479 + 1058854480.

It is an arithmetic number, because the mean of its divisors is an integer number (1058854480).

Almost surely, 2^2117708959 is an apocalyptic number.

2117708959 is a deficient number, since it is larger than the sum of its proper divisors (1).

2117708959 is an equidigital number, since it uses as much as digits as its factorization.

2117708959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 49.

The square root of 2117708959 is about 46018.5718922263. The cubic root of 2117708959 is about 1284.1687324557.

The spelling of 2117708959 in words is "two billion, one hundred seventeen million, seven hundred eight thousand, nine hundred fifty-nine".