12355136714538 has 32 divisors (see below), whose sum is σ = 29070909918720. Its totient is φ = 3876121321920.

The previous prime is 12355136714507. The next prime is 12355136714539. The reversal of 12355136714538 is 83541763155321.

12355136714538 is a `hidden beast` number, since 1 + 2 + 3 + 5 + 5 + 1 + 36 + 71 + 4 + 538 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (12355136714539) 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, 6729376378 + ... + 6729378213.

It is an arithmetic number, because the mean of its divisors is an integer number (908465934960).

Almost surely, 2^{12355136714538} is an apocalyptic number.

12355136714538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12355136714538 is an abundant number, since it is smaller than the sum of its proper divisors (16715773204182).

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

12355136714538 is a wasteful number, since it uses less digits than its factorization.

12355136714538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13458754619 (or 13458754613 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 54.

Adding to 12355136714538 its reverse (83541763155321), we get a palindrome (95896899869859).

The spelling of 12355136714538 in words is "twelve trillion, three hundred fifty-five billion, one hundred thirty-six million, seven hundred fourteen thousand, five hundred thirty-eight".