12578859595761 has 4 divisors (see below), whose sum is σ = 16771812794352. Its totient is φ = 8385906397172.

The previous prime is 12578859595751. The next prime is 12578859595763. The reversal of 12578859595761 is 16759595887521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12578859595761 - 2⁷ = 12578859595633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12578859595763) 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, 2096476599291 + ... + 2096476599296.

It is an arithmetic number, because the mean of its divisors is an integer number (4192953198588).

Almost surely, 2^{12578859595761} is an apocalyptic number.

It is an amenable number.

12578859595761 is a deficient number, since it is larger than the sum of its proper divisors (4192953198591).

12578859595761 is an equidigital number, since it uses as much as digits as its factorization.

12578859595761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4192953198590.

The product of its digits is 1905120000, while the sum is 78.

The spelling of 12578859595761 in words is "twelve trillion, five hundred seventy-eight billion, eight hundred fifty-nine million, five hundred ninety-five thousand, seven hundred sixty-one".