13118477519 has 12 divisors (see below), whose sum is σ = 15475207248. Its totient is φ = 11086034400.

The previous prime is 13118477509. The next prime is 13118477527. The reversal of 13118477519 is 91577481131.

It is a de Polignac number, because none of the positive numbers 2^k-13118477519 is a prime.

It is a super-2 number, since 2×13118477519² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13118477509) 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, 1881902 + ... + 1888859.

It is an arithmetic number, because the mean of its divisors is an integer number (1289600604).

Almost surely, 2^13118477519 is an apocalyptic number.

13118477519 is a deficient number, since it is larger than the sum of its proper divisors (2356729729).

13118477519 is an equidigital number, since it uses as much as digits as its factorization.

13118477519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770846 (or 3770839 counting only the distinct ones).

The product of its digits is 211680, while the sum is 47.

The spelling of 13118477519 in words is "thirteen billion, one hundred eighteen million, four hundred seventy-seven thousand, five hundred nineteen".