18856197360 has 2240 divisors, whose sum is σ = 98363704320. Its totient is φ = 3224862720.

The previous prime is 18856197359. The next prime is 18856197389. The reversal of 18856197360 is 6379165881.

18856197360 is a `hidden beast` number, since 1 + 8 + 8 + 561 + 9 + 73 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 18856197297 and 18856197306.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 447 ways as a sum of consecutive naturals, for example, 992431431 + ... + 992431449.

It is an arithmetic number, because the mean of its divisors is an integer number (43912368).

Almost surely, 2^18856197360 is an apocalyptic number.

18856197360 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 18856197360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49181852160).

18856197360 is an abundant number, since it is smaller than the sum of its proper divisors (79507506960).

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

18856197360 is a wasteful number, since it uses less digits than its factorization.

18856197360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 18856197360 in words is "eighteen billion, eight hundred fifty-six million, one hundred ninety-seven thousand, three hundred sixty".