39819371087 has 6 divisors (see below), whose sum is σ = 42025430808. Its totient is φ = 37723614372.

The previous prime is 39819371077. The next prime is 39819371089. The reversal of 39819371087 is 78017391893.

39819371087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39819371087 - 2¹⁶ = 39819305551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39819371089) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55151123 + ... + 55151844.

It is an arithmetic number, because the mean of its divisors is an integer number (7004238468).

Almost surely, 2^39819371087 is an apocalyptic number.

39819371087 is a deficient number, since it is larger than the sum of its proper divisors (2206059721).

39819371087 is a wasteful number, since it uses less digits than its factorization.

39819371087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110303005 (or 110302986 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 56.

The spelling of 39819371087 in words is "thirty-nine billion, eight hundred nineteen million, three hundred seventy-one thousand, eighty-seven".