18288869382 has 96 divisors (see below), whose sum is σ = 50035594752. Its totient is φ = 4704175872.

The previous prime is 18288869381. The next prime is 18288869419. The reversal of 18288869382 is 28396888281.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18288869381) 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, 136348 + ... + 234879.

It is an arithmetic number, because the mean of its divisors is an integer number (521204112).

Almost surely, 2^18288869382 is an apocalyptic number.

18288869382 is an abundant number, since it is smaller than the sum of its proper divisors (31746725370).

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

18288869382 is a wasteful number, since it uses less digits than its factorization.

18288869382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371282 (or 371279 counting only the distinct ones).

The product of its digits is 21233664, while the sum is 63.

The spelling of 18288869382 in words is "eighteen billion, two hundred eighty-eight million, eight hundred sixty-nine thousand, three hundred eighty-two".