13894500069 has 12 divisors (see below), whose sum is σ = 20071166700. Its totient is φ = 9262384704.

The previous prime is 13894500047. The next prime is 13894500071. The reversal of 13894500069 is 96000549831.

It is a happy number.

13894500069 is a `hidden beast` number, since 1 + 3 + 89 + 4 + 500 + 0 + 69 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3438415044 + 10456085025 = 58638^2 + 102255^2 .

It is not a de Polignac number, because 13894500069 - 2⁸ = 13894499813 is a prime.

It is a super-2 number, since 2×13894500069² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13894499997 and 13894500033.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13894500019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122847 + ... + 207075.

It is an arithmetic number, because the mean of its divisors is an integer number (1672597225).

Almost surely, 2^13894500069 is an apocalyptic number.

It is an amenable number.

13894500069 is a deficient number, since it is larger than the sum of its proper divisors (6176666631).

13894500069 is a wasteful number, since it uses less digits than its factorization.

13894500069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102564 (or 102561 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 13894500069 in words is "thirteen billion, eight hundred ninety-four million, five hundred thousand, sixty-nine".