12134672720 has 40 divisors (see below), whose sum is σ = 28320437376. Its totient is φ = 4835404928.

The previous prime is 12134672687. The next prime is 12134672723. The reversal of 12134672720 is 2727643121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12134672723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267332 + ... + 309411.

Almost surely, 2^12134672720 is an apocalyptic number.

12134672720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12134672720 is an abundant number, since it is smaller than the sum of its proper divisors (16185764656).

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

12134672720 is a wasteful number, since it uses less digits than its factorization.

12134672720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577019 (or 577013 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The spelling of 12134672720 in words is "twelve billion, one hundred thirty-four million, six hundred seventy-two thousand, seven hundred twenty".