18269623392804 has 135 divisors (see below), whose sum is σ = 55559659218987. Its totient is φ = 5219738523216.

The previous prime is 18269623392767. The next prime is 18269623392809. The reversal of 18269623392804 is 40829332696281.

It is a happy number.

The square root of 18269623392804 is 4274298.

It is a perfect power (a square), and thus also a powerful number.

18269623392804 is a `hidden beast` number, since 1 + 8 + 269 + 62 + 3 + 39 + 280 + 4 = 666.

It is a super-2 number, since 2×18269623392804² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (18269623392809) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 538544587 + ... + 538578509.

Almost surely, 2^{18269623392804} is an apocalyptic number.

18269623392804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18269623392804 is the 4274298-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18269623392804

18269623392804 is an abundant number, since it is smaller than the sum of its proper divisors (37290035826183).

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

18269623392804 is an frugal number, since it uses more digits than its factorization.

18269623392804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67876 (or 33935 counting only the distinct ones).

The product of its (nonzero) digits is 53747712, while the sum is 63.

The spelling of 18269623392804 in words is "eighteen trillion, two hundred sixty-nine billion, six hundred twenty-three million, three hundred ninety-two thousand, eight hundred four".