18856674050 has 24 divisors (see below), whose sum is σ = 35096200500. Its totient is φ = 7537769280.

The previous prime is 18856674047. The next prime is 18856674061. The reversal of 18856674050 is 5047665881.

It can be written as a sum of positive squares in 6 ways, for example, as 2528178961 + 16328495089 = 50281^2 + 127783^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 18856674050.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44285 + ... + 199184.

Almost surely, 2^18856674050 is an apocalyptic number.

18856674050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18856674050 is a deficient number, since it is larger than the sum of its proper divisors (16239526450).

18856674050 is a wasteful number, since it uses less digits than its factorization.

18856674050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245030 (or 245025 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 18856674050 in words is "eighteen billion, eight hundred fifty-six million, six hundred seventy-four thousand, fifty".