319495996905 has 16 divisors (see below), whose sum is σ = 511209646080. Its totient is φ = 170392514688.

The previous prime is 319495996903. The next prime is 319495996913. The reversal of 319495996905 is 509699594913.

It is not a de Polignac number, because 319495996905 - 2¹ = 319495996903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 319495996905.

It is not an unprimeable number, because it can be changed into a prime (319495996903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185304 + ... + 820566.

It is an arithmetic number, because the mean of its divisors is an integer number (31950602880).

Almost surely, 2^319495996905 is an apocalyptic number.

It is an amenable number.

319495996905 is a deficient number, since it is larger than the sum of its proper divisors (191713649175).

319495996905 is a wasteful number, since it uses less digits than its factorization.

319495996905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668800.

The product of its (nonzero) digits is 106288200, while the sum is 69.

The spelling of 319495996905 in words is "three hundred nineteen billion, four hundred ninety-five million, nine hundred ninety-six thousand, nine hundred five".