12961988472 has 16 divisors (see below), whose sum is σ = 32404971240. Its totient is φ = 4320662816.

The previous prime is 12961988467. The next prime is 12961988489. The reversal of 12961988472 is 27488916921.

It is a super-3 number, since 3×12961988472³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270041403 + ... + 270041450.

Almost surely, 2^12961988472 is an apocalyptic number.

12961988472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12961988472 is an abundant number, since it is smaller than the sum of its proper divisors (19442982768).

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

12961988472 is a wasteful number, since it uses less digits than its factorization.

12961988472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540082862 (or 540082858 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 57.

The spelling of 12961988472 in words is "twelve billion, nine hundred sixty-one million, nine hundred eighty-eight thousand, four hundred seventy-two".