12676523721 has 16 divisors (see below), whose sum is σ = 17795557440. Its totient is φ = 8004450240.

The previous prime is 12676523719. The next prime is 12676523723. The reversal of 12676523721 is 12732567621.

It is an interprime number because it is at equal distance from previous prime (12676523719) and next prime (12676523723).

It is not a de Polignac number, because 12676523721 - 2¹ = 12676523719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12676523723) 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, 264051 + ... + 308343.

It is an arithmetic number, because the mean of its divisors is an integer number (1112222340).

Almost surely, 2^12676523721 is an apocalyptic number.

It is an amenable number.

12676523721 is a deficient number, since it is larger than the sum of its proper divisors (5119033719).

12676523721 is a wasteful number, since it uses less digits than its factorization.

12676523721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49336.

The product of its digits is 211680, while the sum is 42.

The spelling of 12676523721 in words is "twelve billion, six hundred seventy-six million, five hundred twenty-three thousand, seven hundred twenty-one".