12502638875197 has 2 divisors, whose sum is σ = 12502638875198. Its totient is φ = 12502638875196.

The previous prime is 12502638875161. The next prime is 12502638875263. The reversal of 12502638875197 is 79157883620521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10249595847001 + 2253043028196 = 3201499^2 + 1501014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12502638875197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12502638875147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6251319437598 + 6251319437599.

It is an arithmetic number, because the mean of its divisors is an integer number (6251319437599).

Almost surely, 2^{12502638875197} is an apocalyptic number.

It is an amenable number.

12502638875197 is a deficient number, since it is larger than the sum of its proper divisors (1).

12502638875197 is an equidigital number, since it uses as much as digits as its factorization.

12502638875197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50803200, while the sum is 64.

The spelling of 12502638875197 in words is "twelve trillion, five hundred two billion, six hundred thirty-eight million, eight hundred seventy-five thousand, one hundred ninety-seven".