39789221994 has 24 divisors (see below), whose sum is σ = 86661349632. Its totient is φ = 13193632680.

The previous prime is 39789221951. The next prime is 39789222013. The reversal of 39789221994 is 49912298793.

39789221994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 5783244 + ... + 5790119.

It is an arithmetic number, because the mean of its divisors is an integer number (3610889568).

Almost surely, 2^39789221994 is an apocalyptic number.

39789221994 is an abundant number, since it is smaller than the sum of its proper divisors (46872127638).

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

39789221994 is a wasteful number, since it uses less digits than its factorization.

39789221994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11573562 (or 11573559 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 63.

The spelling of 39789221994 in words is "thirty-nine billion, seven hundred eighty-nine million, two hundred twenty-one thousand, nine hundred ninety-four".