13923465938 has 6 divisors (see below), whose sum is σ = 20885449221. Its totient is φ = 6961649532.

The previous prime is 13923465937. The next prime is 13923465947. The reversal of 13923465938 is 83956432931.

It can be written as a sum of positive squares in 2 ways, for example, as 9303952849 + 4619513089 = 96457^2 + 67967^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=83437.

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 13923465938.

It is not an unprimeable number, because it can be changed into a prime (13923465937) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 125156 + ... + 208592.

Almost surely, 2^13923465938 is an apocalyptic number.

13923465938 is a deficient number, since it is larger than the sum of its proper divisors (6961983283).

13923465938 is an frugal number, since it uses more digits than its factorization.

13923465938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166876 (or 83439 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 53.

The spelling of 13923465938 in words is "thirteen billion, nine hundred twenty-three million, four hundred sixty-five thousand, nine hundred thirty-eight".