13106781635670 has 48 divisors (see below), whose sum is σ = 34908794024832. Its totient is φ = 3409894408320.

The previous prime is 13106781635653. The next prime is 13106781635713. The reversal of 13106781635670 is 7653618760131.

13106781635670 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 6 + 78 + 1 + 6 + 3 + 567 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1775982982 + ... + 1775990361.

It is an arithmetic number, because the mean of its divisors is an integer number (727266542184).

Almost surely, 2^{13106781635670} is an apocalyptic number.

13106781635670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13106781635670 is an abundant number, since it is smaller than the sum of its proper divisors (21802012389162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13106781635670 is a wasteful number, since it uses less digits than its factorization.

13106781635670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3551973397 (or 3551973394 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 13106781635670 in words is "thirteen trillion, one hundred six billion, seven hundred eighty-one million, six hundred thirty-five thousand, six hundred seventy".