18798179238720 has 1344 divisors, whose sum is σ = 77285591285760. Its totient is φ = 4104963588096.

The previous prime is 18798179238719. The next prime is 18798179238737. The reversal of 18798179238720 is 2783297189781.

18798179238720 is a `hidden beast` number, since 1 + 8 + 79 + 8 + 179 + 2 + 387 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 8036843311 + ... + 8036845649.

Almost surely, 2^{18798179238720} is an apocalyptic number.

18798179238720 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 18798179238720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38642795642880).

18798179238720 is an abundant number, since it is smaller than the sum of its proper divisors (58487412047040).

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

18798179238720 is a wasteful number, since it uses less digits than its factorization.

18798179238720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612 (or 2599 counting only the distinct ones).

The product of its (nonzero) digits is 170698752, while the sum is 72.

The spelling of 18798179238720 in words is "eighteen trillion, seven hundred ninety-eight billion, one hundred seventy-nine million, two hundred thirty-eight thousand, seven hundred twenty".