39495997696 has 27 divisors (see below), whose sum is σ = 78844061793. Its totient is φ = 19746408960.

The previous prime is 39495997679. The next prime is 39495997729. The reversal of 39495997696 is 69679959493.

The square root of 39495997696 is 198736.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 38234327296 + 1261670400 = 195536^2 + 35520^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3173566 + ... + 3185986.

Almost surely, 2^39495997696 is an apocalyptic number.

39495997696 is the 198736-th square number.

It is an amenable number.

39495997696 is a deficient number, since it is larger than the sum of its proper divisors (39348064097).

39495997696 is an frugal number, since it uses more digits than its factorization.

39495997696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24858 (or 12423 counting only the distinct ones).

The product of its digits is 892820880, while the sum is 76.

The spelling of 39495997696 in words is "thirty-nine billion, four hundred ninety-five million, nine hundred ninety-seven thousand, six hundred ninety-six".