13431908716377 has 4 divisors (see below), whose sum is σ = 17909211621840. Its totient is φ = 8954605810916.

The previous prime is 13431908716319. The next prime is 13431908716423. The reversal of 13431908716377 is 77361780913431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13431908716377 - 2⁷ = 13431908716249 is a prime.

It is a super-2 number, since 2×13431908716377² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13431908716377.

It is not an unprimeable number, because it can be changed into a prime (13431908716477) 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, 2238651452727 + ... + 2238651452732.

It is an arithmetic number, because the mean of its divisors is an integer number (4477302905460).

Almost surely, 2^{13431908716377} is an apocalyptic number.

It is an amenable number.

13431908716377 is a deficient number, since it is larger than the sum of its proper divisors (4477302905463).

13431908716377 is an equidigital number, since it uses as much as digits as its factorization.

13431908716377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4477302905462.

The product of its (nonzero) digits is 16003008, while the sum is 60.

The spelling of 13431908716377 in words is "thirteen trillion, four hundred thirty-one billion, nine hundred eight million, seven hundred sixteen thousand, three hundred seventy-seven".