13825346693 has 4 divisors (see below), whose sum is σ = 13860887820. Its totient is φ = 13789805568.

The previous prime is 13825346671. The next prime is 13825346719. The reversal of 13825346693 is 39664352831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7104298369 + 6721048324 = 84287^2 + 81982^2 .

It is a cyclic number.

It is not a de Polignac number, because 13825346693 - 2¹⁰ = 13825345669 is a prime.

It is a super-2 number, since 2×13825346693² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13825346653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17769980 + ... + 17770757.

It is an arithmetic number, because the mean of its divisors is an integer number (3465221955).

Almost surely, 2^13825346693 is an apocalyptic number.

It is an amenable number.

13825346693 is a deficient number, since it is larger than the sum of its proper divisors (35541127).

13825346693 is an equidigital number, since it uses as much as digits as its factorization.

13825346693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35541126.

The product of its digits is 2799360, while the sum is 50.

The spelling of 13825346693 in words is "thirteen billion, eight hundred twenty-five million, three hundred forty-six thousand, six hundred ninety-three".