12549164791 has 8 divisors (see below), whose sum is σ = 12813935904. Its totient is φ = 12286903680.

The previous prime is 12549164759. The next prime is 12549164807. The reversal of 12549164791 is 19746194521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12549164791 - 2⁵ = 12549164759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12549164731) 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, 617395 + ... + 637396.

It is an arithmetic number, because the mean of its divisors is an integer number (1601741988).

Almost surely, 2^12549164791 is an apocalyptic number.

12549164791 is a deficient number, since it is larger than the sum of its proper divisors (264771113).

12549164791 is a wasteful number, since it uses less digits than its factorization.

12549164791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255001.

The product of its digits is 544320, while the sum is 49.

The spelling of 12549164791 in words is "twelve billion, five hundred forty-nine million, one hundred sixty-four thousand, seven hundred ninety-one".