18634320030620 has 48 divisors (see below), whose sum is σ = 44722700476608. Its totient is φ = 6388862238720.

The previous prime is 18634320030619. The next prime is 18634320030673. The reversal of 18634320030620 is 2603002343681.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22072604 + ... + 22901276.

It is an arithmetic number, because the mean of its divisors is an integer number (931722926596).

Almost surely, 2^{18634320030620} is an apocalyptic number.

18634320030620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18634320030620 is an abundant number, since it is smaller than the sum of its proper divisors (26088380445988).

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

18634320030620 is a wasteful number, since it uses less digits than its factorization.

18634320030620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989310 (or 989308 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 18634320030620 in words is "eighteen trillion, six hundred thirty-four billion, three hundred twenty million, thirty thousand, six hundred twenty".