39378668889 has 16 divisors (see below), whose sum is σ = 60989290880. Its totient is φ = 22133208960.

The previous prime is 39378668887. The next prime is 39378668891. The reversal of 39378668889 is 98886687393.

39378668889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (39378668887) and next prime (39378668891).

It is not a de Polignac number, because 39378668889 - 2¹ = 39378668887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39378668889.

It is not an unprimeable number, because it can be changed into a prime (39378668887) 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, 15369004 + ... + 15371565.

It is an arithmetic number, because the mean of its divisors is an integer number (3811830680).

Almost surely, 2^39378668889 is an apocalyptic number.

It is an amenable number.

39378668889 is a deficient number, since it is larger than the sum of its proper divisors (21610621991).

39378668889 is a wasteful number, since it uses less digits than its factorization.

39378668889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30740640.

The product of its digits is 752467968, while the sum is 75.

The spelling of 39378668889 in words is "thirty-nine billion, three hundred seventy-eight million, six hundred sixty-eight thousand, eight hundred eighty-nine".