31773497396 has 6 divisors (see below), whose sum is σ = 55603620450. Its totient is φ = 15886748696.

The previous prime is 31773497363. The next prime is 31773497411. The reversal of 31773497396 is 69379437713.

It can be written as a sum of positive squares in only one way, i.e., 20030740900 + 11742756496 = 141530^2 + 108364^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3971687171 + ... + 3971687178.

It is an arithmetic number, because the mean of its divisors is an integer number (9267270075).

Almost surely, 2^31773497396 is an apocalyptic number.

It is an amenable number.

31773497396 is a deficient number, since it is larger than the sum of its proper divisors (23830123054).

31773497396 is a wasteful number, since it uses less digits than its factorization.

31773497396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7943374353 (or 7943374351 counting only the distinct ones).

The product of its digits is 18003384, while the sum is 59.

The spelling of 31773497396 in words is "thirty-one billion, seven hundred seventy-three million, four hundred ninety-seven thousand, three hundred ninety-six".