18289263072 has 24 divisors (see below), whose sum is σ = 48009315816. Its totient is φ = 6096420992.

The previous prime is 18289263019. The next prime is 18289263089. The reversal of 18289263072 is 27036298281.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95256483 + ... + 95256674.

It is an arithmetic number, because the mean of its divisors is an integer number (2000388159).

Almost surely, 2^18289263072 is an apocalyptic number.

18289263072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18289263072 is an abundant number, since it is smaller than the sum of its proper divisors (29720052744).

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

18289263072 is a wasteful number, since it uses less digits than its factorization.

18289263072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190513170 (or 190513162 counting only the distinct ones).

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

The spelling of 18289263072 in words is "eighteen billion, two hundred eighty-nine million, two hundred sixty-three thousand, seventy-two".