2170620368831 has 2 divisors, whose sum is σ = 2170620368832. Its totient is φ = 2170620368830.

The previous prime is 2170620368773. The next prime is 2170620368893. The reversal of 2170620368831 is 1388630260712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2170620368831 - 2²⁶ = 2170553259967 is a prime.

It is a super-2 number, since 2×2170620368831² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2170620362831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085310184415 + 1085310184416.

It is an arithmetic number, because the mean of its divisors is an integer number (1085310184416).

Almost surely, 2^{2170620368831} is an apocalyptic number.

2170620368831 is a deficient number, since it is larger than the sum of its proper divisors (1).

2170620368831 is an equidigital number, since it uses as much as digits as its factorization.

2170620368831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 2170620368831 in words is "two trillion, one hundred seventy billion, six hundred twenty million, three hundred sixty-eight thousand, eight hundred thirty-one".