18280982620 has 24 divisors (see below), whose sum is σ = 40410594000. Its totient is φ = 6927530112.

The previous prime is 18280982593. The next prime is 18280982651. The reversal of 18280982620 is 2628908281.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 24053545 + ... + 24054304.

It is an arithmetic number, because the mean of its divisors is an integer number (1683774750).

Almost surely, 2^18280982620 is an apocalyptic number.

18280982620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18280982620 is an abundant number, since it is smaller than the sum of its proper divisors (22129611380).

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

18280982620 is a wasteful number, since it uses less digits than its factorization.

18280982620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48107877 (or 48107875 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The spelling of 18280982620 in words is "eighteen billion, two hundred eighty million, nine hundred eighty-two thousand, six hundred twenty".