1313182643906 has 24 divisors (see below), whose sum is σ = 2291557022460. Its totient is φ = 562746556512.

The previous prime is 1313182643833. The next prime is 1313182644047. The reversal of 1313182643906 is 6093462813131.

It can be written as a sum of positive squares in 2 ways, for example, as 1307269802881 + 5912841025 = 1143359^2 + 76895^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 671060 + ... + 1754048.

Almost surely, 2^{1313182643906} is an apocalyptic number.

1313182643906 is a deficient number, since it is larger than the sum of its proper divisors (978374378554).

1313182643906 is a wasteful number, since it uses less digits than its factorization.

1313182643906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095378 (or 1095371 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 1313182643906 in words is "one trillion, three hundred thirteen billion, one hundred eighty-two million, six hundred forty-three thousand, nine hundred six".