18226761924 has 24 divisors (see below), whose sum is σ = 48604698688. Its totient is φ = 5207646240.

The previous prime is 18226761913. The next prime is 18226761961. The reversal of 18226761924 is 42916762281.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108492547 + ... + 108492714.

Almost surely, 2^18226761924 is an apocalyptic number.

18226761924 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18226761924 is an abundant number, since it is smaller than the sum of its proper divisors (30377936764).

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

18226761924 is a wasteful number, since it uses less digits than its factorization.

18226761924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216985275 (or 216985273 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The spelling of 18226761924 in words is "eighteen billion, two hundred twenty-six million, seven hundred sixty-one thousand, nine hundred twenty-four".