18302768190 has 384 divisors, whose sum is σ = 58657996800. Its totient is φ = 3869648640.

The previous prime is 18302768177. The next prime is 18302768219. The reversal of 18302768190 is 9186720381.

It is a super-2 number, since 2×18302768190² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 67537755 + ... + 67538025.

It is an arithmetic number, because the mean of its divisors is an integer number (152755200).

Almost surely, 2^18302768190 is an apocalyptic number.

18302768190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18302768190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29328998400).

18302768190 is an abundant number, since it is smaller than the sum of its proper divisors (40355228610).

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

18302768190 is a wasteful number, since it uses less digits than its factorization.

18302768190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 18302768190 in words is "eighteen billion, three hundred two million, seven hundred sixty-eight thousand, one hundred ninety".