939689986939 has 8 divisors (see below), whose sum is σ = 1025133408432. Its totient is φ = 854249408640.

The previous prime is 939689986933. The next prime is 939689986987.

939689986939 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 939689986939 - 2³ = 939689986931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 939689986939.

It is not an unprimeable number, because it can be changed into a prime (939689986931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12247 + ... + 1370959.

It is an arithmetic number, because the mean of its divisors is an integer number (128141676054).

Almost surely, 2^939689986939 is an apocalyptic number.

939689986939 is a deficient number, since it is larger than the sum of its proper divisors (85443421493).

939689986939 is a wasteful number, since it uses less digits than its factorization.

939689986939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421597.

The product of its digits is 11019960576, while the sum is 88.

The spelling of 939689986939 in words is "nine hundred thirty-nine billion, six hundred eighty-nine million, nine hundred eighty-six thousand, nine hundred thirty-nine".