18874002050 has 12 divisors (see below), whose sum is σ = 35105643906. Its totient is φ = 7549600800.

The previous prime is 18874001989. The next prime is 18874002073. The reversal of 18874002050 is 5020047881.

It can be written as a sum of positive squares in 3 ways, for example, as 16689280969 + 2184721081 = 129187^2 + 46741^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18874002050.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 188739971 + ... + 188740070.

Almost surely, 2^18874002050 is an apocalyptic number.

18874002050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18874002050 is a deficient number, since it is larger than the sum of its proper divisors (16231641856).

18874002050 is a wasteful number, since it uses less digits than its factorization.

18874002050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377480053 (or 377480048 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The spelling of 18874002050 in words is "eighteen billion, eight hundred seventy-four million, two thousand, fifty".