19392918290442 has 24 divisors (see below), whose sum is σ = 43844858744544. Its totient is φ = 6183249309864.

The previous prime is 19392918290423. The next prime is 19392918290477. The reversal of 19392918290442 is 24409281929391.

19392918290442 is a `hidden beast` number, since 1 + 9 + 3 + 9 + 2 + 9 + 182 + 9 + 0 + 442 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 19392918290442.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23421398488 + ... + 23421399315.

It is an arithmetic number, because the mean of its divisors is an integer number (1826869114356).

Almost surely, 2^{19392918290442} is an apocalyptic number.

19392918290442 is an abundant number, since it is smaller than the sum of its proper divisors (24451940454102).

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

19392918290442 is a wasteful number, since it uses less digits than its factorization.

19392918290442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46842797834 (or 46842797831 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 63.

The spelling of 19392918290442 in words is "nineteen trillion, three hundred ninety-two billion, nine hundred eighteen million, two hundred ninety thousand, four hundred forty-two".