12936759641 has 4 divisors (see below), whose sum is σ = 13931895012. Its totient is φ = 11941624272.

The previous prime is 12936759631. The next prime is 12936759673. The reversal of 12936759641 is 14695763921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14695763921 = 19 ⋅773461259.

It can be written as a sum of positive squares in 2 ways, for example, as 5746398025 + 7190361616 = 75805^2 + 84796^2 .

It is a cyclic number.

It is not a de Polignac number, because 12936759641 - 2¹⁴ = 12936743257 is a prime.

It is a super-3 number, since 3×12936759641³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12936759601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497567666 + ... + 497567691.

It is an arithmetic number, because the mean of its divisors is an integer number (3482973753).

Almost surely, 2^12936759641 is an apocalyptic number.

It is an amenable number.

12936759641 is a deficient number, since it is larger than the sum of its proper divisors (995135371).

12936759641 is an equidigital number, since it uses as much as digits as its factorization.

12936759641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995135370.

The product of its digits is 2449440, while the sum is 53.

The spelling of 12936759641 in words is "twelve billion, nine hundred thirty-six million, seven hundred fifty-nine thousand, six hundred forty-one".