38064939785 has 8 divisors (see below), whose sum is σ = 48364864776. Its totient is φ = 28660660480.

The previous prime is 38064939767. The next prime is 38064939791. The reversal of 38064939785 is 58793946083.

It can be written as a sum of positive squares in 4 ways, for example, as 5415340921 + 32649598864 = 73589^2 + 180692^2 .

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

It is not a de Polignac number, because 38064939785 - 2⁶ = 38064939721 is a prime.

It is a Duffinian 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 in 7 ways as a sum of consecutive naturals, for example, 223911326 + ... + 223911495.

It is an arithmetic number, because the mean of its divisors is an integer number (6045608097).

Almost surely, 2^38064939785 is an apocalyptic number.

It is an amenable number.

38064939785 is a deficient number, since it is larger than the sum of its proper divisors (10299924991).

38064939785 is a wasteful number, since it uses less digits than its factorization.

38064939785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447822843.

The product of its (nonzero) digits is 39191040, while the sum is 62.

The spelling of 38064939785 in words is "thirty-eight billion, sixty-four million, nine hundred thirty-nine thousand, seven hundred eighty-five".