12893622550 has 24 divisors (see below), whose sum is σ = 24271087176. Its totient is φ = 5095309440.

The previous prime is 12893622523. The next prime is 12893622571. The reversal of 12893622550 is 5522639821.

It is a junction number, because it is equal to n+sod(n) for n = 12893622497 and 12893622506.

It is a congruent number.

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, 1549299 + ... + 1557598.

It is an arithmetic number, because the mean of its divisors is an integer number (1011295299).

Almost surely, 2^12893622550 is an apocalyptic number.

12893622550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12893622550 is a deficient number, since it is larger than the sum of its proper divisors (11377464626).

12893622550 is a wasteful number, since it uses less digits than its factorization.

12893622550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3106992 (or 3106987 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 12893622550 in words is "twelve billion, eight hundred ninety-three million, six hundred twenty-two thousand, five hundred fifty".