18624470920422 has 32 divisors (see below), whose sum is σ = 39682019636352. Its totient is φ = 5807124814464.

The previous prime is 18624470920421. The next prime is 18624470920441. The reversal of 18624470920422 is 22402907442681.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18624470920421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 560084148 + ... + 560117399.

It is an arithmetic number, because the mean of its divisors is an integer number (1240063113636).

Almost surely, 2^{18624470920422} is an apocalyptic number.

18624470920422 is an abundant number, since it is smaller than the sum of its proper divisors (21057548715930).

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

18624470920422 is a wasteful number, since it uses less digits than its factorization.

18624470920422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120201732.

The product of its (nonzero) digits is 3096576, while the sum is 51.

The spelling of 18624470920422 in words is "eighteen trillion, six hundred twenty-four billion, four hundred seventy million, nine hundred twenty thousand, four hundred twenty-two".