13671663237 has 24 divisors (see below), whose sum is σ = 20812615200. Its totient is φ = 8624229408.

The previous prime is 13671663233. The next prime is 13671663259. The reversal of 13671663237 is 73236617631.

It is a happy number.

13671663237 is a `hidden beast` number, since 1 + 3 + 6 + 7 + 1 + 6 + 632 + 3 + 7 = 666.

It is not a de Polignac number, because 13671663237 - 2² = 13671663233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13671663192 and 13671663201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13671663233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93538 + ... + 189980.

It is an arithmetic number, because the mean of its divisors is an integer number (867192300).

Almost surely, 2^13671663237 is an apocalyptic number.

It is an amenable number.

13671663237 is a deficient number, since it is larger than the sum of its proper divisors (7140951963).

13671663237 is a wasteful number, since it uses less digits than its factorization.

13671663237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97297 (or 97294 counting only the distinct ones).

The product of its digits is 571536, while the sum is 45.

The spelling of 13671663237 in words is "thirteen billion, six hundred seventy-one million, six hundred sixty-three thousand, two hundred thirty-seven".