18945428900652 has 48 divisors (see below), whose sum is σ = 52007059732320. Its totient is φ = 5943663968256.

The previous prime is 18945428900641. The next prime is 18945428900693. The reversal of 18945428900652 is 25600982454981.

18945428900652 is a `hidden beast` number, since 1 + 8 + 9 + 4 + 542 + 89 + 0 + 0 + 6 + 5 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 18945428900652.

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, 5159428693 + ... + 5159432364.

It is an arithmetic number, because the mean of its divisors is an integer number (1083480411090).

Almost surely, 2^{18945428900652} is an apocalyptic number.

18945428900652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18945428900652 is an abundant number, since it is smaller than the sum of its proper divisors (33061630831668).

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

18945428900652 is a wasteful number, since it uses less digits than its factorization.

18945428900652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10318861087 (or 10318861079 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 63.

The spelling of 18945428900652 in words is "eighteen trillion, nine hundred forty-five billion, four hundred twenty-eight million, nine hundred thousand, six hundred fifty-two".