39849785388 has 72 divisors (see below), whose sum is σ = 118835225600. Its totient is φ = 11018371680.

The previous prime is 39849785387. The next prime is 39849785447. The reversal of 39849785388 is 88358794893.

39849785388 is a `hidden beast` number, since 3 + 9 + 8 + 497 + 8 + 53 + 88 = 666.

39849785388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (39849785387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2542738 + ... + 2558361.

Almost surely, 2^39849785388 is an apocalyptic number.

It is an amenable number.

39849785388 is an abundant number, since it is smaller than the sum of its proper divisors (78985440212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39849785388 is a wasteful number, since it uses less digits than its factorization.

39849785388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101147 (or 5101142 counting only the distinct ones).

The product of its digits is 418037760, while the sum is 72.

The spelling of 39849785388 in words is "thirty-nine billion, eight hundred forty-nine million, seven hundred eighty-five thousand, three hundred eighty-eight".