12387631948 has 6 divisors (see below), whose sum is σ = 21678355916. Its totient is φ = 6193815972.

The previous prime is 12387631901. The next prime is 12387631969. The reversal of 12387631948 is 84913678321.

It is a super-2 number, since 2×12387631948² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12387631895 and 12387631904.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1548453990 + ... + 1548453997.

Almost surely, 2^12387631948 is an apocalyptic number.

It is an amenable number.

12387631948 is a deficient number, since it is larger than the sum of its proper divisors (9290723968).

12387631948 is a wasteful number, since it uses less digits than its factorization.

12387631948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3096907991 (or 3096907989 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 52.

The spelling of 12387631948 in words is "twelve billion, three hundred eighty-seven million, six hundred thirty-one thousand, nine hundred forty-eight".