12477343932 has 18 divisors (see below), whose sum is σ = 31539952808. Its totient is φ = 4159114632.

The previous prime is 12477343891. The next prime is 12477343933. The reversal of 12477343932 is 23934377421.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×12477343932² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12477343933) 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 5 ways as a sum of consecutive naturals, for example, 173296408 + ... + 173296479.

Almost surely, 2^12477343932 is an apocalyptic number.

12477343932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12477343932 is an abundant number, since it is smaller than the sum of its proper divisors (19062608876).

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

12477343932 is a wasteful number, since it uses less digits than its factorization.

12477343932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346592897 (or 346592892 counting only the distinct ones).

The product of its digits is 762048, while the sum is 45.

It can be divided in two parts, 12477 and 343932, that added together give a square (356409 = 597²).

The spelling of 12477343932 in words is "twelve billion, four hundred seventy-seven million, three hundred forty-three thousand, nine hundred thirty-two".