12909762512531 has 2 divisors, whose sum is σ = 12909762512532. Its totient is φ = 12909762512530.

The previous prime is 12909762512519. The next prime is 12909762512573. The reversal of 12909762512531 is 13521526790921.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12909762512531 is a prime.

It is a super-2 number, since 2×12909762512531² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12909762518531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6454881256265 + 6454881256266.

It is an arithmetic number, because the mean of its divisors is an integer number (6454881256266).

Almost surely, 2^{12909762512531} is an apocalyptic number.

12909762512531 is a deficient number, since it is larger than the sum of its proper divisors (1).

12909762512531 is an equidigital number, since it uses as much as digits as its factorization.

12909762512531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2041200, while the sum is 53.

The spelling of 12909762512531 in words is "twelve trillion, nine hundred nine billion, seven hundred sixty-two million, five hundred twelve thousand, five hundred thirty-one".