18625363380 has 288 divisors, whose sum is σ = 61821002880. Its totient is φ = 4511738880.

The previous prime is 18625363373. The next prime is 18625363391. The reversal of 18625363380 is 8336352681.

18625363380 is a `hidden beast` number, since 1 + 8 + 6 + 2 + 5 + 3 + 633 + 8 + 0 = 666.

It is a super-2 number, since 2×18625363380² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 56269815 + ... + 56270145.

It is an arithmetic number, because the mean of its divisors is an integer number (214656260).

Almost surely, 2^18625363380 is an apocalyptic number.

18625363380 is a gapful number since it is divisible by the number (10) 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 18625363380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30910501440).

18625363380 is an abundant number, since it is smaller than the sum of its proper divisors (43195639500).

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

18625363380 is a wasteful number, since it uses less digits than its factorization.

18625363380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 18625363380 in words is "eighteen billion, six hundred twenty-five million, three hundred sixty-three thousand, three hundred eighty".