1313606612405 has 8 divisors (see below), whose sum is σ = 1576554819000. Its totient is φ = 1050734033856.

The previous prime is 1313606612359. The next prime is 1313606612449. The reversal of 1313606612405 is 5042166063131.

It can be written as a sum of positive squares in 4 ways, for example, as 126637763044 + 1186968849361 = 355862^2 + 1089481^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1313606612405 - 2⁶ = 1313606612341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18868790 + ... + 18938279.

It is an arithmetic number, because the mean of its divisors is an integer number (197069352375).

Almost surely, 2^{1313606612405} is an apocalyptic number.

It is an amenable number.

1313606612405 is a deficient number, since it is larger than the sum of its proper divisors (262948206595).

1313606612405 is an equidigital number, since it uses as much as digits as its factorization.

1313606612405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37814023.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 1313606612405 in words is "one trillion, three hundred thirteen billion, six hundred six million, six hundred twelve thousand, four hundred five".