190285198439 has 64 divisors (see below), whose sum is σ = 240718832640. Its totient is φ = 146706094080.

The previous prime is 190285198391. The next prime is 190285198447. The reversal of 190285198439 is 934891582091.

It is a de Polignac number, because none of the positive numbers 2^k-190285198439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190285195439) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 133158977 + ... + 133160405.

It is an arithmetic number, because the mean of its divisors is an integer number (3761231760).

Almost surely, 2^190285198439 is an apocalyptic number.

190285198439 is a deficient number, since it is larger than the sum of its proper divisors (50433634201).

190285198439 is a wasteful number, since it uses less digits than its factorization.

190285198439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040.

The product of its (nonzero) digits is 5598720, while the sum is 59.

The spelling of 190285198439 in words is "one hundred ninety billion, two hundred eighty-five million, one hundred ninety-eight thousand, four hundred thirty-nine".