12874754891 has 4 divisors (see below), whose sum is σ = 13632093432. Its totient is φ = 12117416352.

The previous prime is 12874754887. The next prime is 12874754897. The reversal of 12874754891 is 19845747821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12874754891 - 2² = 12874754887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12874754897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378669245 + ... + 378669278.

It is an arithmetic number, because the mean of its divisors is an integer number (3408023358).

Almost surely, 2^12874754891 is an apocalyptic number.

12874754891 is a deficient number, since it is larger than the sum of its proper divisors (757338541).

12874754891 is an equidigital number, since it uses as much as digits as its factorization.

12874754891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757338540.

The product of its digits is 4515840, while the sum is 56.

The spelling of 12874754891 in words is "twelve billion, eight hundred seventy-four million, seven hundred fifty-four thousand, eight hundred ninety-one".