12901779395 has 16 divisors (see below), whose sum is σ = 15655791648. Its totient is φ = 10205844480.

The previous prime is 12901779389. The next prime is 12901779403. The reversal of 12901779395 is 59397710921.

It is a Cunningham number, because it is equal to 113586²-1.

It is not a de Polignac number, because 12901779395 - 2¹⁴ = 12901763011 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 556577 + ... + 579293.

It is an arithmetic number, because the mean of its divisors is an integer number (978486978).

Almost surely, 2^12901779395 is an apocalyptic number.

12901779395 is a deficient number, since it is larger than the sum of its proper divisors (2754012253).

12901779395 is a wasteful number, since it uses less digits than its factorization.

12901779395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23990.

The product of its (nonzero) digits is 1071630, while the sum is 53.

The spelling of 12901779395 in words is "twelve billion, nine hundred one million, seven hundred seventy-nine thousand, three hundred ninety-five".