39687635059 has 12 divisors (see below), whose sum is σ = 41446861488. Its totient is φ = 37988999360.

The previous prime is 39687635047. The next prime is 39687635087. The reversal of 39687635059 is 95053678693.

It is a de Polignac number, because none of the positive numbers 2^k-39687635059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39687634988 and 39687635006.

It is not an unprimeable number, because it can be changed into a prime (39687635159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133639 + ... + 311824.

It is an arithmetic number, because the mean of its divisors is an integer number (3453905124).

Almost surely, 2^39687635059 is an apocalyptic number.

39687635059 is a deficient number, since it is larger than the sum of its proper divisors (1759226429).

39687635059 is an equidigital number, since it uses as much as digits as its factorization.

39687635059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445598 (or 445557 counting only the distinct ones).

The product of its (nonzero) digits is 36741600, while the sum is 61.

The spelling of 39687635059 in words is "thirty-nine billion, six hundred eighty-seven million, six hundred thirty-five thousand, fifty-nine".