22381418493 has 48 divisors (see below), whose sum is σ = 39219747840. Its totient is φ = 12006517248.

The previous prime is 22381418491. The next prime is 22381418509. The reversal of 22381418493 is 39481418322.

22381418493 is a `hidden beast` number, since 2 + 2 + 381 + 4 + 184 + 93 = 666.

It is not a de Polignac number, because 22381418493 - 2¹ = 22381418491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22381418491) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 398868 + ... + 451506.

It is an arithmetic number, because the mean of its divisors is an integer number (817078080).

Almost surely, 2^22381418493 is an apocalyptic number.

It is an amenable number.

22381418493 is a deficient number, since it is larger than the sum of its proper divisors (16838329347).

22381418493 is a wasteful number, since it uses less digits than its factorization.

22381418493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53066 (or 53063 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The spelling of 22381418493 in words is "twenty-two billion, three hundred eighty-one million, four hundred eighteen thousand, four hundred ninety-three".