18989014950594 has 512 divisors, whose sum is σ = 51209625600000. Its totient is φ = 5162934712320.

The previous prime is 18989014950583. The next prime is 18989014950649. The reversal of 18989014950594 is 49505941098981.

It is a happy number.

18989014950594 is a `hidden beast` number, since 1 + 8 + 9 + 89 + 0 + 1 + 495 + 0 + 59 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1291850257 + ... + 1291864955.

It is an arithmetic number, because the mean of its divisors is an integer number (100018800000).

Almost surely, 2^{18989014950594} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18989014950594, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25604812800000).

18989014950594 is an abundant number, since it is smaller than the sum of its proper divisors (32220610649406).

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

18989014950594 is a wasteful number, since it uses less digits than its factorization.

18989014950594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14895 (or 14889 counting only the distinct ones).

The product of its (nonzero) digits is 167961600, while the sum is 72.

The spelling of 18989014950594 in words is "eighteen trillion, nine hundred eighty-nine billion, fourteen million, nine hundred fifty thousand, five hundred ninety-four".