12453115272 has 64 divisors (see below), whose sum is σ = 34683768000. Its totient is φ = 3699596544.

The previous prime is 12453115249. The next prime is 12453115273. The reversal of 12453115272 is 27251135421.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12453115273) 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, 679122 + ... + 697217.

It is an arithmetic number, because the mean of its divisors is an integer number (541933875).

Almost surely, 2^12453115272 is an apocalyptic number.

12453115272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12453115272 is an abundant number, since it is smaller than the sum of its proper divisors (22230652728).

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

12453115272 is a wasteful number, since it uses less digits than its factorization.

12453115272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376390 (or 1376386 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The spelling of 12453115272 in words is "twelve billion, four hundred fifty-three million, one hundred fifteen thousand, two hundred seventy-two".