12863489100 has 144 divisors (see below), whose sum is σ = 46402196736. Its totient is φ = 2672928000.

The previous prime is 12863489083. The next prime is 12863489123. The reversal of 12863489100 is 198436821.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 255331 + ... + 301530.

Almost surely, 2^12863489100 is an apocalyptic number.

12863489100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12863489100 is an abundant number, since it is smaller than the sum of its proper divisors (33538707636).

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

12863489100 is a wasteful number, since it uses less digits than its factorization.

12863489100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556896 (or 556889 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 12863489100 in words is "twelve billion, eight hundred sixty-three million, four hundred eighty-nine thousand, one hundred".