39836866905 has 96 divisors (see below), whose sum is σ = 77944809600. Its totient is φ = 19290015360.

The previous prime is 39836866903. The next prime is 39836866963. The reversal of 39836866905 is 50966863893.

39836866905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39836866905 - 2¹ = 39836866903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39836866903) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 23309191 + ... + 23310899.

It is an arithmetic number, because the mean of its divisors is an integer number (811925100).

Almost surely, 2^39836866905 is an apocalyptic number.

It is an amenable number.

39836866905 is a deficient number, since it is larger than the sum of its proper divisors (38107942695).

39836866905 is a wasteful number, since it uses less digits than its factorization.

39836866905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172 (or 3155 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 63.

The spelling of 39836866905 in words is "thirty-nine billion, eight hundred thirty-six million, eight hundred sixty-six thousand, nine hundred five".