18285278050 has 48 divisors (see below), whose sum is σ = 36708978600. Its totient is φ = 6736343040.

The previous prime is 18285278029. The next prime is 18285278051. The reversal of 18285278050 is 5087258281.

It can be written as a sum of positive squares in 12 ways, for example, as 1640961 + 18283637089 = 1281^2 + 135217^2 .

It is not an unprimeable number, because it can be changed into a prime (18285278051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 260524 + ... + 323176.

Almost surely, 2^18285278050 is an apocalyptic number.

18285278050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18285278050 is an abundant number, since it is smaller than the sum of its proper divisors (18423700550).

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

18285278050 is a wasteful number, since it uses less digits than its factorization.

18285278050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63127 (or 63122 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 46.

The spelling of 18285278050 in words is "eighteen billion, two hundred eighty-five million, two hundred seventy-eight thousand, fifty".