13264071874561 has 4 divisors (see below), whose sum is σ = 14044311396612. Its totient is φ = 12483832352512.

The previous prime is 13264071874453. The next prime is 13264071874567. The reversal of 13264071874561 is 16547817046231.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5006316750400 + 8257755124161 = 2237480^2 + 2873631^2 .

It is a cyclic number.

It is not a de Polignac number, because 13264071874561 - 2¹⁹ = 13264071350273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13264071874567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390119761000 + ... + 390119761033.

It is an arithmetic number, because the mean of its divisors is an integer number (3511077849153).

Almost surely, 2^{13264071874561} is an apocalyptic number.

It is an amenable number.

13264071874561 is a deficient number, since it is larger than the sum of its proper divisors (780239522051).

13264071874561 is an equidigital number, since it uses as much as digits as its factorization.

13264071874561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780239522050.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 13264071874561 in words is "thirteen trillion, two hundred sixty-four billion, seventy-one million, eight hundred seventy-four thousand, five hundred sixty-one".