18712680113407 has 4 divisors (see below), whose sum is σ = 21385920129616. Its totient is φ = 16039440097200.

The previous prime is 18712680113399. The next prime is 18712680113417. The reversal of 18712680113407 is 70431108621781.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18712680113407 - 2³ = 18712680113399 is a prime.

It is a super-2 number, since 2×18712680113407² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18712680113417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1336620008094 + ... + 1336620008107.

It is an arithmetic number, because the mean of its divisors is an integer number (5346480032404).

Almost surely, 2^{18712680113407} is an apocalyptic number.

18712680113407 is a deficient number, since it is larger than the sum of its proper divisors (2673240016209).

18712680113407 is an equidigital number, since it uses as much as digits as its factorization.

18712680113407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673240016208.

The product of its (nonzero) digits is 451584, while the sum is 49.

The spelling of 18712680113407 in words is "eighteen trillion, seven hundred twelve billion, six hundred eighty million, one hundred thirteen thousand, four hundred seven".