12879162891390 has 32 divisors (see below), whose sum is σ = 31567650324480. Its totient is φ = 3361370172704.

The previous prime is 12879162891383. The next prime is 12879162891391. The reversal of 12879162891390 is 9319826197821.

It is a super-2 number, since 2×12879162891390² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12879162891391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4567077630 + ... + 4567080449.

It is an arithmetic number, because the mean of its divisors is an integer number (986489072640).

Almost surely, 2^{12879162891390} is an apocalyptic number.

12879162891390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12879162891390 is an abundant number, since it is smaller than the sum of its proper divisors (18688487433090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12879162891390 is a wasteful number, since it uses less digits than its factorization.

12879162891390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9134158136.

The product of its (nonzero) digits is 23514624, while the sum is 66.

The spelling of 12879162891390 in words is "twelve trillion, eight hundred seventy-nine billion, one hundred sixty-two million, eight hundred ninety-one thousand, three hundred ninety".