12853477850 has 24 divisors (see below), whose sum is σ = 24358558140. Its totient is φ = 5044382720.

The previous prime is 12853477837. The next prime is 12853477873. The reversal of 12853477850 is 5877435821.

It can be written as a sum of positive squares in 6 ways, for example, as 9194316769 + 3659161081 = 95887^2 + 60491^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (50).

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, 2422535 + ... + 2427834.

Almost surely, 2^12853477850 is an apocalyptic number.

12853477850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12853477850 is a deficient number, since it is larger than the sum of its proper divisors (11505080290).

12853477850 is a wasteful number, since it uses less digits than its factorization.

12853477850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4850434 (or 4850429 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 50.

The spelling of 12853477850 in words is "twelve billion, eight hundred fifty-three million, four hundred seventy-seven thousand, eight hundred fifty".