13078405613 has 24 divisors (see below), whose sum is σ = 17096300928. Its totient is φ = 9897836256.

The previous prime is 13078405607. The next prime is 13078405619. The reversal of 13078405613 is 31650487031.

It is an interprime number because it is at equal distance from previous prime (13078405607) and next prime (13078405619).

It is not a de Polignac number, because 13078405613 - 2⁸ = 13078405357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13078405619) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 431681 + ... + 460982.

It is an arithmetic number, because the mean of its divisors is an integer number (712345872).

Almost surely, 2^13078405613 is an apocalyptic number.

13078405613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13078405613 is a deficient number, since it is larger than the sum of its proper divisors (4017895315).

13078405613 is a wasteful number, since it uses less digits than its factorization.

13078405613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892713 (or 892706 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 13078405613 in words is "thirteen billion, seventy-eight million, four hundred five thousand, six hundred thirteen".