13902666399 has 6 divisors (see below), whose sum is σ = 20081629256. Its totient is φ = 9268444260.

The previous prime is 13902666373. The next prime is 13902666409. The reversal of 13902666399 is 99366620931.

It is not a de Polignac number, because 13902666399 - 2¹⁵ = 13902633631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13902666199) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 772370347 + ... + 772370364.

Almost surely, 2^13902666399 is an apocalyptic number.

13902666399 is a deficient number, since it is larger than the sum of its proper divisors (6178962857).

13902666399 is a wasteful number, since it uses less digits than its factorization.

13902666399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544740717 (or 1544740714 counting only the distinct ones).

The product of its (nonzero) digits is 2834352, while the sum is 54.

The spelling of 13902666399 in words is "thirteen billion, nine hundred two million, six hundred sixty-six thousand, three hundred ninety-nine".