12644026050 has 24 divisors (see below), whose sum is σ = 31357184976. Its totient is φ = 3371740240.

The previous prime is 12644026033. The next prime is 12644026061. The reversal of 12644026050 is 5062044621.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12644025999 and 12644026017.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42146604 + ... + 42146903.

It is an arithmetic number, because the mean of its divisors is an integer number (1306549374).

Almost surely, 2^12644026050 is an apocalyptic number.

12644026050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12644026050 is an abundant number, since it is smaller than the sum of its proper divisors (18713158926).

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

12644026050 is a wasteful number, since it uses less digits than its factorization.

12644026050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84293522 (or 84293517 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 12644026050 in words is "twelve billion, six hundred forty-four million, twenty-six thousand, fifty".