234687505631 has 2 divisors, whose sum is σ = 234687505632. Its totient is φ = 234687505630.

The previous prime is 234687505573. The next prime is 234687505649. The reversal of 234687505631 is 136505786432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 234687505631 - 2¹⁰ = 234687504607 is a prime.

It is a super-2 number, since 2×234687505631² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 234687505631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234687505651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117343752815 + 117343752816.

It is an arithmetic number, because the mean of its divisors is an integer number (117343752816).

Almost surely, 2^234687505631 is an apocalyptic number.

234687505631 is a deficient number, since it is larger than the sum of its proper divisors (1).

234687505631 is an equidigital number, since it uses as much as digits as its factorization.

234687505631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 234687505631 in words is "two hundred thirty-four billion, six hundred eighty-seven million, five hundred five thousand, six hundred thirty-one".