13646026605746 has 4 divisors (see below), whose sum is σ = 20469039908622. Its totient is φ = 6823013302872.

The previous prime is 13646026605727. The next prime is 13646026605767. The reversal of 13646026605746 is 64750662064631.

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

It can be written as a sum of positive squares in only one way, i.e., 11848981795225 + 1797044810521 = 3442235^2 + 1340539^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13646026605691 and 13646026605700.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3411506651435 + ... + 3411506651438.

Almost surely, 2^{13646026605746} is an apocalyptic number.

13646026605746 is a deficient number, since it is larger than the sum of its proper divisors (6823013302876).

13646026605746 is an equidigital number, since it uses as much as digits as its factorization.

13646026605746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6823013302875.

The product of its (nonzero) digits is 26127360, while the sum is 56.

The spelling of 13646026605746 in words is "thirteen trillion, six hundred forty-six billion, twenty-six million, six hundred five thousand, seven hundred forty-six".