13791323385 has 64 divisors (see below), whose sum is σ = 28078479360. Its totient is φ = 6291552960.

The previous prime is 13791323383. The next prime is 13791323401. The reversal of 13791323385 is 58332319731.

13791323385 is a `hidden beast` number, since 137 + 9 + 132 + 3 + 385 = 666.

It is not a de Polignac number, because 13791323385 - 2¹ = 13791323383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 13791323385.

It is not an unprimeable number, because it can be changed into a prime (13791323383) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 449134 + ... + 478856.

It is an arithmetic number, because the mean of its divisors is an integer number (438726240).

Almost surely, 2^13791323385 is an apocalyptic number.

13791323385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13791323385 is an abundant number, since it is smaller than the sum of its proper divisors (14287155975).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13791323385 is a wasteful number, since it uses less digits than its factorization.

13791323385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30235 (or 30229 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The spelling of 13791323385 in words is "thirteen billion, seven hundred ninety-one million, three hundred twenty-three thousand, three hundred eighty-five".