39869896893 has 4 divisors (see below), whose sum is σ = 53159862528. Its totient is φ = 26579931260.

The previous prime is 39869896873. The next prime is 39869896909.

39869896893 is nontrivially palindromic in base 10.

39869896893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39869896893 - 2⁵ = 39869896861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39869896873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6644982813 + ... + 6644982818.

It is an arithmetic number, because the mean of its divisors is an integer number (13289965632).

Almost surely, 2^39869896893 is an apocalyptic number.

It is an amenable number.

39869896893 is a deficient number, since it is larger than the sum of its proper divisors (13289965635).

39869896893 is a wasteful number, since it uses less digits than its factorization.

39869896893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13289965634.

The product of its digits is 1088391168, while the sum is 78.

The spelling of 39869896893 in words is "thirty-nine billion, eight hundred sixty-nine million, eight hundred ninety-six thousand, eight hundred ninety-three".