13061713977 has 12 divisors (see below), whose sum is σ = 20318221924. Its totient is φ = 8037977760.

The previous prime is 13061713963. The next prime is 13061714011. The reversal of 13061713977 is 77931716031.

13061713977 is a `hidden beast` number, since 13 + 0 + 617 + 13 + 9 + 7 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 574992441 + 12486721536 = 23979^2 + 111744^2 .

It is not a de Polignac number, because 13061713977 - 2²⁸ = 12793278521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13061713937) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55819174 + ... + 55819407.

Almost surely, 2^13061713977 is an apocalyptic number.

It is an amenable number.

13061713977 is a deficient number, since it is larger than the sum of its proper divisors (7256507947).

13061713977 is a wasteful number, since it uses less digits than its factorization.

13061713977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111638600 (or 111638597 counting only the distinct ones).

The product of its (nonzero) digits is 166698, while the sum is 45.

The spelling of 13061713977 in words is "thirteen billion, sixty-one million, seven hundred thirteen thousand, nine hundred seventy-seven".