18273682630 has 64 divisors (see below), whose sum is σ = 39602856960. Its totient is φ = 5930596224.

The previous prime is 18273682627. The next prime is 18273682663. The reversal of 18273682630 is 3628637281.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1821087 + ... + 1831093.

It is an arithmetic number, because the mean of its divisors is an integer number (618794640).

Almost surely, 2^18273682630 is an apocalyptic number.

18273682630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18273682630 is an abundant number, since it is smaller than the sum of its proper divisors (21329174330).

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

18273682630 is a wasteful number, since it uses less digits than its factorization.

18273682630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11413.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 18273682630 in words is "eighteen billion, two hundred seventy-three million, six hundred eighty-two thousand, six hundred thirty".