18884307788953 has 8 divisors (see below), whose sum is σ = 19000894086720. Its totient is φ = 18767763236880.

The previous prime is 18884307788933. The next prime is 18884307788981. The reversal of 18884307788953 is 35988770348881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18884307788953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18884307788903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9528658 + ... + 11338603.

It is an arithmetic number, because the mean of its divisors is an integer number (2375111760840).

Almost surely, 2^{18884307788953} is an apocalyptic number.

It is an amenable number.

18884307788953 is a deficient number, since it is larger than the sum of its proper divisors (116586297767).

18884307788953 is a wasteful number, since it uses less digits than its factorization.

18884307788953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20872847.

The product of its (nonzero) digits is 2601123840, while the sum is 79.

The spelling of 18884307788953 in words is "eighteen trillion, eight hundred eighty-four billion, three hundred seven million, seven hundred eighty-eight thousand, nine hundred fifty-three".