39421186849 has 16 divisors (see below), whose sum is σ = 43430333760. Its totient is φ = 35483304960.

The previous prime is 39421186817. The next prime is 39421186867. The reversal of 39421186849 is 94868112493.

39421186849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 39421186849 - 2⁵ = 39421186817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39421186849.

It is not an unprimeable number, because it can be changed into a prime (39421187849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2450737 + ... + 2466769.

It is an arithmetic number, because the mean of its divisors is an integer number (2714395860).

Almost surely, 2^39421186849 is an apocalyptic number.

It is an amenable number.

39421186849 is a deficient number, since it is larger than the sum of its proper divisors (4009146911).

39421186849 is a wasteful number, since it uses less digits than its factorization.

39421186849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18240.

The product of its digits is 2985984, while the sum is 55.

The spelling of 39421186849 in words is "thirty-nine billion, four hundred twenty-one million, one hundred eighty-six thousand, eight hundred forty-nine".