39685790075 has 18 divisors (see below), whose sum is σ = 49955966676. Its totient is φ = 31274683440.

The previous prime is 39685790071. The next prime is 39685790083. The reversal of 39685790075 is 57009758693.

It is not a de Polignac number, because 39685790075 - 2² = 39685790071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39685789996 and 39685790023.

It is not an unprimeable number, because it can be changed into a prime (39685790071) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 64589 + ... + 289038.

It is an arithmetic number, because the mean of its divisors is an integer number (2775331482).

Almost surely, 2^39685790075 is an apocalyptic number.

39685790075 is a deficient number, since it is larger than the sum of its proper divisors (10270176601).

39685790075 is an equidigital number, since it uses as much as digits as its factorization.

39685790075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353771 (or 353699 counting only the distinct ones).

The product of its (nonzero) digits is 14288400, while the sum is 59.

The spelling of 39685790075 in words is "thirty-nine billion, six hundred eighty-five million, seven hundred ninety thousand, seventy-five".