12779188895 has 16 divisors (see below), whose sum is σ = 16738112160. Its totient is φ = 9288960000.

The previous prime is 12779188883. The next prime is 12779188897. The reversal of 12779188895 is 59888197721.

It is not a de Polignac number, because 12779188895 - 2⁴ = 12779188879 is a prime.

It is a super-3 number, since 3×12779188895³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12779188897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42395 + ... + 165395.

It is an arithmetic number, because the mean of its divisors is an integer number (1046132010).

Almost surely, 2^12779188895 is an apocalyptic number.

12779188895 is a deficient number, since it is larger than the sum of its proper divisors (3958923265).

12779188895 is a wasteful number, since it uses less digits than its factorization.

12779188895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124906.

The product of its digits is 20321280, while the sum is 65.

The spelling of 12779188895 in words is "twelve billion, seven hundred seventy-nine million, one hundred eighty-eight thousand, eight hundred ninety-five".