13057785407 has 4 divisors (see below), whose sum is σ = 13059921336. Its totient is φ = 13055649480.

The previous prime is 13057785383. The next prime is 13057785409. The reversal of 13057785407 is 70458775031.

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 13057785407 - 2⁶ = 13057785343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13057785409) 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, 1058768 + ... + 1071029.

It is an arithmetic number, because the mean of its divisors is an integer number (3264980334).

Almost surely, 2^13057785407 is an apocalyptic number.

13057785407 is a deficient number, since it is larger than the sum of its proper divisors (2135929).

13057785407 is an equidigital number, since it uses as much as digits as its factorization.

13057785407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135928.

The product of its (nonzero) digits is 823200, while the sum is 47.

The spelling of 13057785407 in words is "thirteen billion, fifty-seven million, seven hundred eighty-five thousand, four hundred seven".