12919947879 has 8 divisors (see below), whose sum is σ = 17244907632. Its totient is φ = 8604143360.

The previous prime is 12919947877. The next prime is 12919947889. The reversal of 12919947879 is 97874991921.

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 12919947879 - 2¹ = 12919947877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12919947877) 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, 2285514 + ... + 2291159.

It is an arithmetic number, because the mean of its divisors is an integer number (2155613454).

Almost surely, 2^12919947879 is an apocalyptic number.

12919947879 is a deficient number, since it is larger than the sum of its proper divisors (4324959753).

12919947879 is an equidigital number, since it uses as much as digits as its factorization.

12919947879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4577617.

The product of its digits is 20575296, while the sum is 66.

The spelling of 12919947879 in words is "twelve billion, nine hundred nineteen million, nine hundred forty-seven thousand, eight hundred seventy-nine".