18791055360 has 720 divisors, whose sum is σ = 81459286272. Its totient is φ = 3892838400.

The previous prime is 18791055337. The next prime is 18791055391. The reversal of 18791055360 is 6355019781.

It is a happy number.

18791055360 is a `hidden beast` number, since 1 + 8 + 7 + 9 + 105 + 536 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56770395 + ... + 56770725.

Almost surely, 2^18791055360 is an apocalyptic number.

18791055360 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 18791055360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40729643136).

18791055360 is an abundant number, since it is smaller than the sum of its proper divisors (62668230912).

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

18791055360 is a wasteful number, since it uses less digits than its factorization.

18791055360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The spelling of 18791055360 in words is "eighteen billion, seven hundred ninety-one million, fifty-five thousand, three hundred sixty".