9018015142194 has 640 divisors, whose sum is σ = 22999261824000. Its totient is φ = 2630293585920.

The previous prime is 9018015142189. The next prime is 9018015142229. The reversal of 9018015142194 is 4912415108109.

It is a happy number.

9018015142194 is a `hidden beast` number, since 90 + 1 + 8 + 0 + 1 + 51 + 421 + 94 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 45316658907 + ... + 45316659105.

It is an arithmetic number, because the mean of its divisors is an integer number (35936346600).

Almost surely, 2^{9018015142194} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9018015142194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11499630912000).

9018015142194 is an abundant number, since it is smaller than the sum of its proper divisors (13981246681806).

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

9018015142194 is a wasteful number, since it uses less digits than its factorization.

9018015142194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The spelling of 9018015142194 in words is "nine trillion, eighteen billion, fifteen million, one hundred forty-two thousand, one hundred ninety-four".