1364123266805 has 32 divisors (see below), whose sum is σ = 1791962494560. Its totient is φ = 990730183680.

The previous prime is 1364123266787. The next prime is 1364123266811. The reversal of 1364123266805 is 5086623214631.

It can be written as a sum of positive squares in 16 ways, for example, as 297201606244 + 1066921660561 = 545162^2 + 1032919^2 .

It is not a de Polignac number, because 1364123266805 - 2⁸ = 1364123266549 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1364123266805.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 61957979 + ... + 61979991.

It is an arithmetic number, because the mean of its divisors is an integer number (55998827955).

Almost surely, 2^{1364123266805} is an apocalyptic number.

It is an amenable number.

1364123266805 is a deficient number, since it is larger than the sum of its proper divisors (427839227755).

1364123266805 is a wasteful number, since it uses less digits than its factorization.

1364123266805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37721.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 1364123266805 in words is "one trillion, three hundred sixty-four billion, one hundred twenty-three million, two hundred sixty-six thousand, eight hundred five".