18068172097290 has 256 divisors, whose sum is σ = 50280608342016. Its totient is φ = 4070139494400.

The previous prime is 18068172097207. The next prime is 18068172097303. The reversal of 18068172097290 is 9279027186081.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4032171850 + ... + 4032176330.

It is an arithmetic number, because the mean of its divisors is an integer number (196408626336).

Almost surely, 2^{18068172097290} is an apocalyptic number.

18068172097290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18068172097290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25140304171008).

18068172097290 is an abundant number, since it is smaller than the sum of its proper divisors (32212436244726).

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

18068172097290 is a wasteful number, since it uses less digits than its factorization.

18068172097290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5493.

The product of its (nonzero) digits is 6096384, while the sum is 60.

The spelling of 18068172097290 in words is "eighteen trillion, sixty-eight billion, one hundred seventy-two million, ninety-seven thousand, two hundred ninety".