12147203964 has 24 divisors (see below), whose sum is σ = 32392544128. Its totient is φ = 3470629680.

The previous prime is 12147203891. The next prime is 12147203989. The reversal of 12147203964 is 46930274121.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 72304702 + ... + 72304869.

Almost surely, 2^12147203964 is an apocalyptic number.

12147203964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12147203964 is an abundant number, since it is smaller than the sum of its proper divisors (20245340164).

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

12147203964 is a wasteful number, since it uses less digits than its factorization.

12147203964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144609585 (or 144609583 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 12147203964 in words is "twelve billion, one hundred forty-seven million, two hundred three thousand, nine hundred sixty-four".