39969426868 has 24 divisors (see below), whose sum is σ = 80353055552. Its totient is φ = 17040996864.

The previous prime is 39969426853. The next prime is 39969426883. The reversal of 39969426868 is 86862496993.

39969426868 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 (39969426853) and next prime (39969426883).

It is a junction number, because it is equal to n+sod(n) for n = 39969426797 and 39969426806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3692730 + ... + 3703537.

Almost surely, 2^39969426868 is an apocalyptic number.

It is an amenable number.

39969426868 is an abundant number, since it is smaller than the sum of its proper divisors (40383628684).

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

39969426868 is a wasteful number, since it uses less digits than its factorization.

39969426868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7396471 (or 7396469 counting only the distinct ones).

The product of its digits is 241864704, while the sum is 70.

The spelling of 39969426868 in words is "thirty-nine billion, nine hundred sixty-nine million, four hundred twenty-six thousand, eight hundred sixty-eight".