31332195394 has 16 divisors (see below), whose sum is σ = 47908982520. Its totient is φ = 15362830080.

The previous prime is 31332195343. The next prime is 31332195397. The reversal of 31332195394 is 49359123313.

It can be written as a sum of positive squares in 4 ways, for example, as 29119716025 + 2212479369 = 170645^2 + 47037^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31332195394.

It is not an unprimeable number, because it can be changed into a prime (31332195397) 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, 142234 + ... + 287914.

Almost surely, 2^31332195394 is an apocalyptic number.

31332195394 is a deficient number, since it is larger than the sum of its proper divisors (16576787126).

31332195394 is a wasteful number, since it uses less digits than its factorization.

31332195394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147765.

The product of its digits is 262440, while the sum is 43.

The spelling of 31332195394 in words is "thirty-one billion, three hundred thirty-two million, one hundred ninety-five thousand, three hundred ninety-four".