18320001954900 has 72 divisors (see below), whose sum is σ = 53874821103264. Its totient is φ = 4805246409600.

The previous prime is 18320001954899. The next prime is 18320001954901. The reversal of 18320001954900 is 945910002381.

It is an interprime number because it is at equal distance from previous prime (18320001954899) and next prime (18320001954901).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18320001954901) 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, 500528202 + ... + 500564801.

It is an arithmetic number, because the mean of its divisors is an integer number (748261404212).

Almost surely, 2^{18320001954900} is an apocalyptic number.

18320001954900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18320001954900 is an abundant number, since it is smaller than the sum of its proper divisors (35554819148364).

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

18320001954900 is a wasteful number, since it uses less digits than its factorization.

18320001954900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001093081 (or 1001093074 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 18320001954900 in words is "eighteen trillion, three hundred twenty billion, one million, nine hundred fifty-four thousand, nine hundred".