12712162981 has 16 divisors (see below), whose sum is σ = 15390311040. Its totient is φ = 10250173440.

The previous prime is 12712162973. The next prime is 12712162993. The reversal of 12712162981 is 18926121721.

It is a cyclic number.

It is not a de Polignac number, because 12712162981 - 2³ = 12712162973 is a prime.

It is a super-2 number, since 2×12712162981² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12712162961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228525 + ... + 278653.

It is an arithmetic number, because the mean of its divisors is an integer number (961894440).

Almost surely, 2^12712162981 is an apocalyptic number.

It is an amenable number.

12712162981 is a deficient number, since it is larger than the sum of its proper divisors (2678148059).

12712162981 is a wasteful number, since it uses less digits than its factorization.

12712162981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52284.

The product of its digits is 24192, while the sum is 40.

The spelling of 12712162981 in words is "twelve billion, seven hundred twelve million, one hundred sixty-two thousand, nine hundred eighty-one".