12897476532 has 24 divisors (see below), whose sum is σ = 33437902400. Its totient is φ = 4299158808.

The previous prime is 12897476531. The next prime is 12897476551. The reversal of 12897476532 is 23567479821.

It is a happy number.

12897476532 is a `hidden beast` number, since 12 + 8 + 97 + 4 + 7 + 6 + 532 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12897476531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59710432 + ... + 59710647.

Almost surely, 2^12897476532 is an apocalyptic number.

12897476532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12897476532 is an abundant number, since it is smaller than the sum of its proper divisors (20540425868).

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

12897476532 is a wasteful number, since it uses less digits than its factorization.

12897476532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119421092 (or 119421084 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The spelling of 12897476532 in words is "twelve billion, eight hundred ninety-seven million, four hundred seventy-six thousand, five hundred thirty-two".