13673662537 has 2 divisors, whose sum is σ = 13673662538. Its totient is φ = 13673662536.

The previous prime is 13673662529. The next prime is 13673662543. The reversal of 13673662537 is 73526637631.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13113914256 + 559748281 = 114516^2 + 23659^2 .

It is an emirp because it is prime and its reverse (73526637631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13673662537 - 2³ = 13673662529 is a prime.

It is not a weakly prime, because it can be changed into another prime (13673662507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6836831268 + 6836831269.

It is an arithmetic number, because the mean of its divisors is an integer number (6836831269).

Almost surely, 2^13673662537 is an apocalyptic number.

It is an amenable number.

13673662537 is a deficient number, since it is larger than the sum of its proper divisors (1).

13673662537 is an equidigital number, since it uses as much as digits as its factorization.

13673662537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2857680, while the sum is 49.

The spelling of 13673662537 in words is "thirteen billion, six hundred seventy-three million, six hundred sixty-two thousand, five hundred thirty-seven".