12791875621 has 8 divisors (see below), whose sum is σ = 14623368320. Its totient is φ = 10961403408.

The previous prime is 12791875561. The next prime is 12791875627. The reversal of 12791875621 is 12657819721.

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 12791875621 - 2⁷ = 12791875493 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 (12791875627) 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, 228066 + ... + 278563.

It is an arithmetic number, because the mean of its divisors is an integer number (1827921040).

Almost surely, 2^12791875621 is an apocalyptic number.

It is an amenable number.

12791875621 is a deficient number, since it is larger than the sum of its proper divisors (1831492699).

12791875621 is an equidigital number, since it uses as much as digits as its factorization.

12791875621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510243.

The product of its digits is 423360, while the sum is 49.

It can be divided in two parts, 1279 and 1875621, that added together give a square (1876900 = 1370²).

The spelling of 12791875621 in words is "twelve billion, seven hundred ninety-one million, eight hundred seventy-five thousand, six hundred twenty-one".