12453615405 has 128 divisors (see below), whose sum is σ = 27759513600. Its totient is φ = 5146156800.

The previous prime is 12453615389. The next prime is 12453615413. The reversal of 12453615405 is 50451635421.

12453615405 is a `hidden beast` number, since 1 + 2 + 4 + 53 + 61 + 540 + 5 = 666.

It is not a de Polignac number, because 12453615405 - 2⁴ = 12453615389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12453615405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1878186 + ... + 1884804.

It is an arithmetic number, because the mean of its divisors is an integer number (216871200).

Almost surely, 2^12453615405 is an apocalyptic number.

12453615405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12453615405 is an abundant number, since it is smaller than the sum of its proper divisors (15305898195).

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

12453615405 is a wasteful number, since it uses less digits than its factorization.

12453615405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6832 (or 6826 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 12453615405 in words is "twelve billion, four hundred fifty-three million, six hundred fifteen thousand, four hundred five".