190433168639 has 16 divisors (see below), whose sum is σ = 220642105920. Its totient is φ = 160975745280.

The previous prime is 190433168591. The next prime is 190433168647. The reversal of 190433168639 is 936861334091.

It is not a de Polignac number, because 190433168639 - 2⁸ = 190433168383 is a prime.

It is a super-2 number, since 2×190433168639² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190433168659) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9791777 + ... + 9811205.

It is an arithmetic number, because the mean of its divisors is an integer number (13790131620).

Almost surely, 2^190433168639 is an apocalyptic number.

190433168639 is a deficient number, since it is larger than the sum of its proper divisors (30208937281).

190433168639 is a wasteful number, since it uses less digits than its factorization.

190433168639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38690.

The product of its (nonzero) digits is 2519424, while the sum is 53.

The spelling of 190433168639 in words is "one hundred ninety billion, four hundred thirty-three million, one hundred sixty-eight thousand, six hundred thirty-nine".