31994900319 has 8 divisors (see below), whose sum is σ = 42704634672. Its totient is φ = 21307549760.

The previous prime is 31994900317. The next prime is 31994900339. The reversal of 31994900319 is 91300949913.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31994900319 - 2¹ = 31994900317 is a prime.

It is a super-2 number, since 2×31994900319² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31994900317) 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 7 ways as a sum of consecutive naturals, for example, 5592612 + ... + 5598329.

It is an arithmetic number, because the mean of its divisors is an integer number (5338079334).

Almost surely, 2^31994900319 is an apocalyptic number.

31994900319 is a deficient number, since it is larger than the sum of its proper divisors (10709734353).

31994900319 is a wasteful number, since it uses less digits than its factorization.

31994900319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11191897.

The product of its (nonzero) digits is 236196, while the sum is 48.

The spelling of 31994900319 in words is "thirty-one billion, nine hundred ninety-four million, nine hundred thousand, three hundred nineteen".