12387631946 has 16 divisors (see below), whose sum is σ = 18702171648. Its totient is φ = 6153602400.

The previous prime is 12387631901. The next prime is 12387631969. The reversal of 12387631946 is 64913678321.

It is a junction number, because it is equal to n+sod(n) for n = 12387631894 and 12387631903.

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, 1260311 + ... + 1270101.

It is an arithmetic number, because the mean of its divisors is an integer number (1168885728).

Almost surely, 2^12387631946 is an apocalyptic number.

12387631946 is a deficient number, since it is larger than the sum of its proper divisors (6314539702).

12387631946 is a wasteful number, since it uses less digits than its factorization.

12387631946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13837.

The product of its digits is 1306368, while the sum is 50.

The spelling of 12387631946 in words is "twelve billion, three hundred eighty-seven million, six hundred thirty-one thousand, nine hundred forty-six".