18619130880 has 704 divisors, whose sum is σ = 76969820160. Its totient is φ = 4180377600.

The previous prime is 18619130869. The next prime is 18619130899. The reversal of 18619130880 is 8803191681.

18619130880 is a `hidden beast` number, since 1 + 86 + 191 + 308 + 80 = 666.

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 63 ways as a sum of consecutive naturals, for example, 68705145 + ... + 68705415.

Almost surely, 2^18619130880 is an apocalyptic number.

18619130880 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 18619130880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38484910080).

18619130880 is an abundant number, since it is smaller than the sum of its proper divisors (58350689280).

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

18619130880 is a wasteful number, since it uses less digits than its factorization.

18619130880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The spelling of 18619130880 in words is "eighteen billion, six hundred nineteen million, one hundred thirty thousand, eight hundred eighty".