18263924364 has 192 divisors, whose sum is σ = 54499737600. Its totient is φ = 4637647872.

The previous prime is 18263924359. The next prime is 18263924377. The reversal of 18263924364 is 46342936281.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2591157 + ... + 2598195.

It is an arithmetic number, because the mean of its divisors is an integer number (283852800).

Almost surely, 2^18263924364 is an apocalyptic number.

18263924364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18263924364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27249868800).

18263924364 is an abundant number, since it is smaller than the sum of its proper divisors (36235813236).

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

18263924364 is a wasteful number, since it uses less digits than its factorization.

18263924364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7172 (or 7170 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 48.

The spelling of 18263924364 in words is "eighteen billion, two hundred sixty-three million, nine hundred twenty-four thousand, three hundred sixty-four".