262156568231 has 2 divisors, whose sum is σ = 262156568232. Its totient is φ = 262156568230.

The previous prime is 262156568209. The next prime is 262156568237. The reversal of 262156568231 is 132865651262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 262156568231 - 2¹⁴ = 262156551847 is a prime.

It is a super-2 number, since 2×262156568231² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (262156568237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131078284115 + 131078284116.

It is an arithmetic number, because the mean of its divisors is an integer number (131078284116).

Almost surely, 2^262156568231 is an apocalyptic number.

262156568231 is a deficient number, since it is larger than the sum of its proper divisors (1).

262156568231 is an equidigital number, since it uses as much as digits as its factorization.

262156568231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1036800, while the sum is 47.

The spelling of 262156568231 in words is "two hundred sixty-two billion, one hundred fifty-six million, five hundred sixty-eight thousand, two hundred thirty-one".