13415138805 has 16 divisors (see below), whose sum is σ = 21465687744. Its totient is φ = 7154252160.

The previous prime is 13415138801. The next prime is 13415138813. The reversal of 13415138805 is 50883151431.

It is not a de Polignac number, because 13415138805 - 2² = 13415138801 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 (13415138801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347217 + ... + 383913.

It is an arithmetic number, because the mean of its divisors is an integer number (1341605484).

Almost surely, 2^13415138805 is an apocalyptic number.

13415138805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13415138805 is a deficient number, since it is larger than the sum of its proper divisors (8050548939).

13415138805 is a wasteful number, since it uses less digits than its factorization.

13415138805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61076.

The product of its (nonzero) digits is 57600, while the sum is 39.

The spelling of 13415138805 in words is "thirteen billion, four hundred fifteen million, one hundred thirty-eight thousand, eight hundred five".