39935696438 has 24 divisors (see below), whose sum is σ = 69717598776. Its totient is φ = 17084788160.

The previous prime is 39935696431. The next prime is 39935696453. The reversal of 39935696438 is 83469653993.

39935696438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39935696431) 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, 4849520 + ... + 4857747.

It is an arithmetic number, because the mean of its divisors is an integer number (2904899949).

Almost surely, 2^39935696438 is an apocalyptic number.

39935696438 is a deficient number, since it is larger than the sum of its proper divisors (29781902338).

39935696438 is a wasteful number, since it uses less digits than its factorization.

39935696438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9707308 (or 9707297 counting only the distinct ones).

The product of its digits is 113374080, while the sum is 65.

The spelling of 39935696438 in words is "thirty-nine billion, nine hundred thirty-five million, six hundred ninety-six thousand, four hundred thirty-eight".