39845539850 has 24 divisors (see below), whose sum is σ = 75218870208. Its totient is φ = 15700330800.

The previous prime is 39845539829. The next prime is 39845539891. The reversal of 39845539850 is 5893554893.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 39845539850.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5943746 + ... + 5950445.

It is an arithmetic number, because the mean of its divisors is an integer number (3134119592).

Almost surely, 2^39845539850 is an apocalyptic number.

39845539850 is a deficient number, since it is larger than the sum of its proper divisors (35373330358).

39845539850 is a wasteful number, since it uses less digits than its factorization.

39845539850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11894270 (or 11894265 counting only the distinct ones).

The product of its (nonzero) digits is 23328000, while the sum is 59.

The spelling of 39845539850 in words is "thirty-nine billion, eight hundred forty-five million, five hundred thirty-nine thousand, eight hundred fifty".