12278364732 has 36 divisors (see below), whose sum is σ = 31321730440. Its totient is φ = 4055238432.

The previous prime is 12278364731. The next prime is 12278364793. The reversal of 12278364732 is 23746387221.

12278364732 is a `hidden beast` number, since 12 + 278 + 364 + 7 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12278364731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1560598 + ... + 1568445.

Almost surely, 2^12278364732 is an apocalyptic number.

12278364732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12278364732 is an abundant number, since it is smaller than the sum of its proper divisors (19043365708).

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

12278364732 is a wasteful number, since it uses less digits than its factorization.

12278364732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3129162 (or 3129157 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The spelling of 12278364732 in words is "twelve billion, two hundred seventy-eight million, three hundred sixty-four thousand, seven hundred thirty-two".