12971532453 has 32 divisors (see below), whose sum is σ = 19222769664. Its totient is φ = 7714200000.

The previous prime is 12971532451. The next prime is 12971532493. The reversal of 12971532453 is 35423517921.

It is not a de Polignac number, because 12971532453 - 2¹ = 12971532451 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12971532451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 860128 + ... + 875078.

It is an arithmetic number, because the mean of its divisors is an integer number (600711552).

Almost surely, 2^12971532453 is an apocalyptic number.

It is an amenable number.

12971532453 is a deficient number, since it is larger than the sum of its proper divisors (6251237211).

12971532453 is a wasteful number, since it uses less digits than its factorization.

12971532453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15457.

The product of its digits is 226800, while the sum is 42.

The spelling of 12971532453 in words is "twelve billion, nine hundred seventy-one million, five hundred thirty-two thousand, four hundred fifty-three".