13172683397 has 2 divisors, whose sum is σ = 13172683398. Its totient is φ = 13172683396.

The previous prime is 13172683357. The next prime is 13172683417. The reversal of 13172683397 is 79338627131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12390138721 + 782544676 = 111311^2 + 27974^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13172683397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13172683357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6586341698 + 6586341699.

It is an arithmetic number, because the mean of its divisors is an integer number (6586341699).

Almost surely, 2^13172683397 is an apocalyptic number.

It is an amenable number.

13172683397 is a deficient number, since it is larger than the sum of its proper divisors (1).

13172683397 is an equidigital number, since it uses as much as digits as its factorization.

13172683397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 50.

The spelling of 13172683397 in words is "thirteen billion, one hundred seventy-two million, six hundred eighty-three thousand, three hundred ninety-seven".