13670861877 has 24 divisors (see below), whose sum is σ = 20610517824. Its totient is φ = 8715467904.

The previous prime is 13670861873. The next prime is 13670861929. The reversal of 13670861877 is 77816807631.

13670861877 is a `hidden beast` number, since 13 + 6 + 7 + 0 + 8 + 618 + 7 + 7 = 666.

It is not a de Polignac number, because 13670861877 - 2² = 13670861873 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13670861873) 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, 1389658 + ... + 1399460.

It is an arithmetic number, because the mean of its divisors is an integer number (858771576).

Almost surely, 2^13670861877 is an apocalyptic number.

It is an amenable number.

13670861877 is a deficient number, since it is larger than the sum of its proper divisors (6939655947).

13670861877 is a wasteful number, since it uses less digits than its factorization.

13670861877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16569 (or 16566 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 54.

The spelling of 13670861877 in words is "thirteen billion, six hundred seventy million, eight hundred sixty-one thousand, eight hundred seventy-seven".