39038442785 has 16 divisors (see below), whose sum is σ = 47274181200. Its totient is φ = 30945546240.

The previous prime is 39038442763. The next prime is 39038442871. The reversal of 39038442785 is 58724483093.

It can be written as a sum of positive squares in 8 ways, for example, as 5288343841 + 33750098944 = 72721^2 + 183712^2 .

It is not a de Polignac number, because 39038442785 - 2¹⁸ = 39038180641 is a prime.

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 in 15 ways as a sum of consecutive naturals, for example, 2569391 + ... + 2584539.

It is an arithmetic number, because the mean of its divisors is an integer number (2954636325).

Almost surely, 2^39038442785 is an apocalyptic number.

It is an amenable number.

39038442785 is a deficient number, since it is larger than the sum of its proper divisors (8235738415).

39038442785 is a wasteful number, since it uses less digits than its factorization.

39038442785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19828.

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 39038442785 in words is "thirty-nine billion, thirty-eight million, four hundred forty-two thousand, seven hundred eighty-five".