39418085864 has 16 divisors (see below), whose sum is σ = 75906449700. Its totient is φ = 19176365952.

The previous prime is 39418085803. The next prime is 39418085887. The reversal of 39418085864 is 46858081493.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39318924100 + 99161764 = 198290^2 + 9958^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66584309 + ... + 66584900.

Almost surely, 2^39418085864 is an apocalyptic number.

It is an amenable number.

39418085864 is a deficient number, since it is larger than the sum of its proper divisors (36488363836).

39418085864 is a wasteful number, since it uses less digits than its factorization.

39418085864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133169252 (or 133169248 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 56.

The spelling of 39418085864 in words is "thirty-nine billion, four hundred eighteen million, eighty-five thousand, eight hundred sixty-four".