31673649794 has 4 divisors (see below), whose sum is σ = 47510474694. Its totient is φ = 15836824896.

The previous prime is 31673649703. The next prime is 31673649811. The reversal of 31673649794 is 49794637613.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27262963225 + 4410686569 = 165115^2 + 66413^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7918412447 + ... + 7918412450.

Almost surely, 2^31673649794 is an apocalyptic number.

31673649794 is a deficient number, since it is larger than the sum of its proper divisors (15836824900).

31673649794 is a wasteful number, since it uses less digits than its factorization.

31673649794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15836824899.

The product of its digits is 20575296, while the sum is 59.

The spelling of 31673649794 in words is "thirty-one billion, six hundred seventy-three million, six hundred forty-nine thousand, seven hundred ninety-four".