12178963732 has 24 divisors (see below), whose sum is σ = 22957532136. Its totient is φ = 5619867648.

The previous prime is 12178963649. The next prime is 12178963781. The reversal of 12178963732 is 23736987121.

It can be written as a sum of positive squares in 4 ways, for example, as 158911236 + 12020052496 = 12606^2 + 109636^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251988 + ... + 296404.

It is an arithmetic number, because the mean of its divisors is an integer number (956563839).

Almost surely, 2^12178963732 is an apocalyptic number.

It is an amenable number.

12178963732 is a deficient number, since it is larger than the sum of its proper divisors (10778568404).

12178963732 is a wasteful number, since it uses less digits than its factorization.

12178963732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49707 (or 49705 counting only the distinct ones).

The product of its digits is 762048, while the sum is 49.

The spelling of 12178963732 in words is "twelve billion, one hundred seventy-eight million, nine hundred sixty-three thousand, seven hundred thirty-two".