12502371643 has 2 divisors, whose sum is σ = 12502371644. Its totient is φ = 12502371642.

The previous prime is 12502371599. The next prime is 12502371653. The reversal of 12502371643 is 34617320521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12502371643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12502371599 and 12502371608.

It is not a weakly prime, because it can be changed into another prime (12502371653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6251185821 + 6251185822.

It is an arithmetic number, because the mean of its divisors is an integer number (6251185822).

Almost surely, 2^12502371643 is an apocalyptic number.

12502371643 is a deficient number, since it is larger than the sum of its proper divisors (1).

12502371643 is an equidigital number, since it uses as much as digits as its factorization.

12502371643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 12502371643 in words is "twelve billion, five hundred two million, three hundred seventy-one thousand, six hundred forty-three".