13705823256087 has 8 divisors (see below), whose sum is σ = 18274472680960. Its totient is φ = 9137194667640.

The previous prime is 13705823256067. The next prime is 13705823256091. The reversal of 13705823256087 is 78065232850731.

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

It is not a de Polignac number, because 13705823256087 - 2⁶ = 13705823256023 is a prime.

It is a super-2 number, since 2×13705823256087² (a number of 27 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 (13705823256007) 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, 3603589 + ... + 6355902.

It is an arithmetic number, because the mean of its divisors is an integer number (2284309085120).

Almost surely, 2^{13705823256087} is an apocalyptic number.

13705823256087 is a deficient number, since it is larger than the sum of its proper divisors (4568649424873).

13705823256087 is an equidigital number, since it uses as much as digits as its factorization.

13705823256087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10418213.

The product of its (nonzero) digits is 16934400, while the sum is 57.

The spelling of 13705823256087 in words is "thirteen trillion, seven hundred five billion, eight hundred twenty-three million, two hundred fifty-six thousand, eighty-seven".