39677742668 has 6 divisors (see below), whose sum is σ = 69436049676. Its totient is φ = 19838871332.

The previous prime is 39677742659. The next prime is 39677742683. The reversal of 39677742668 is 86624777693.

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, 4959717830 + ... + 4959717837.

It is an arithmetic number, because the mean of its divisors is an integer number (11572674946).

Almost surely, 2^39677742668 is an apocalyptic number.

It is an amenable number.

39677742668 is a deficient number, since it is larger than the sum of its proper divisors (29758307008).

39677742668 is a wasteful number, since it uses less digits than its factorization.

39677742668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9919435671 (or 9919435669 counting only the distinct ones).

The product of its digits is 128024064, while the sum is 65.

The spelling of 39677742668 in words is "thirty-nine billion, six hundred seventy-seven million, seven hundred forty-two thousand, six hundred sixty-eight".