12672291771 has 12 divisors (see below), whose sum is σ = 18342013872. Its totient is φ = 8430844176.

The previous prime is 12672291743. The next prime is 12672291781. The reversal of 12672291771 is 17719227621.

It is not a de Polignac number, because 12672291771 - 2¹³ = 12672283579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12672291781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1441236 + ... + 1450001.

It is an arithmetic number, because the mean of its divisors is an integer number (1528501156).

Almost surely, 2^12672291771 is an apocalyptic number.

12672291771 is a deficient number, since it is larger than the sum of its proper divisors (5669722101).

12672291771 is a wasteful number, since it uses less digits than its factorization.

12672291771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891730 (or 2891727 counting only the distinct ones).

The product of its digits is 148176, while the sum is 45.

The spelling of 12672291771 in words is "twelve billion, six hundred seventy-two million, two hundred ninety-one thousand, seven hundred seventy-one".