234431568643 has 2 divisors, whose sum is σ = 234431568644. Its totient is φ = 234431568642.

The previous prime is 234431568593. The next prime is 234431568649. The reversal of 234431568643 is 346865134432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 234431568643 - 2³⁷ = 96992615171 is a prime.

It is a super-2 number, since 2×234431568643² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (234431568649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117215784321 + 117215784322.

It is an arithmetic number, because the mean of its divisors is an integer number (117215784322).

Almost surely, 2^234431568643 is an apocalyptic number.

234431568643 is a deficient number, since it is larger than the sum of its proper divisors (1).

234431568643 is an equidigital number, since it uses as much as digits as its factorization.

234431568643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4976640, while the sum is 49.

The spelling of 234431568643 in words is "two hundred thirty-four billion, four hundred thirty-one million, five hundred sixty-eight thousand, six hundred forty-three".