12887791279 has 8 divisors (see below), whose sum is σ = 14060230272. Its totient is φ = 11715489240.

The previous prime is 12887791247. The next prime is 12887791289. The reversal of 12887791279 is 97219778821.

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 12887791279 - 2⁵ = 12887791247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12887791289) 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, 353352 + ... + 388114.

It is an arithmetic number, because the mean of its divisors is an integer number (1757528784).

Almost surely, 2^12887791279 is an apocalyptic number.

12887791279 is a deficient number, since it is larger than the sum of its proper divisors (1172438993).

12887791279 is a wasteful number, since it uses less digits than its factorization.

12887791279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68477.

The product of its digits is 7112448, while the sum is 61.

The spelling of 12887791279 in words is "twelve billion, eight hundred eighty-seven million, seven hundred ninety-one thousand, two hundred seventy-nine".