12938982532 has 18 divisors (see below), whose sum is σ = 26340071982. Its totient is φ = 5545278144.

The previous prime is 12938982493. The next prime is 12938982569. The reversal of 12938982532 is 23528983921.

It can be written as a sum of positive squares in only one way, i.e., 9933311556 + 3005670976 = 99666^2 + 54824^2 .

It is a super-2 number, since 2×12938982532² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12938982532.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33007413 + ... + 33007804.

Almost surely, 2^12938982532 is an apocalyptic number.

It is an amenable number.

12938982532 is an abundant number, since it is smaller than the sum of its proper divisors (13401089450).

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

12938982532 is a wasteful number, since it uses less digits than its factorization.

12938982532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66015235 (or 66015226 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 52.

The spelling of 12938982532 in words is "twelve billion, nine hundred thirty-eight million, nine hundred eighty-two thousand, five hundred thirty-two".