18079178782200 has 192 divisors, whose sum is σ = 58485558470400. Its totient is φ = 4611236889600.

The previous prime is 18079178782193. The next prime is 18079178782367. The reversal of 18079178782200 is 228787197081.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

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, 383326620 + ... + 383373780.

It is an arithmetic number, because the mean of its divisors is an integer number (304612283700).

Almost surely, 2^{18079178782200} is an apocalyptic number.

18079178782200 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 18079178782200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29242779235200).

18079178782200 is an abundant number, since it is smaller than the sum of its proper divisors (40406379688200).

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

18079178782200 is a wasteful number, since it uses less digits than its factorization.

18079178782200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74982 (or 74973 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 60.

The spelling of 18079178782200 in words is "eighteen trillion, seventy-nine billion, one hundred seventy-eight million, seven hundred eighty-two thousand, two hundred".