190431298318 has 16 divisors (see below), whose sum is σ = 298091588256. Its totient is φ = 91068135840.

The previous prime is 190431298313. The next prime is 190431298327. The reversal of 190431298318 is 813892134091.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190431298313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394708 + ... + 732568.

It is an arithmetic number, because the mean of its divisors is an integer number (18630724266).

Almost surely, 2^190431298318 is an apocalyptic number.

190431298318 is a deficient number, since it is larger than the sum of its proper divisors (107660289938).

190431298318 is a wasteful number, since it uses less digits than its factorization.

190431298318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350139.

The product of its (nonzero) digits is 373248, while the sum is 49.

The spelling of 190431298318 in words is "one hundred ninety billion, four hundred thirty-one million, two hundred ninety-eight thousand, three hundred eighteen".