760121126561 has 4 divisors (see below), whose sum is σ = 761012242452. Its totient is φ = 759230010672.

The previous prime is 760121126533. The next prime is 760121126587. The reversal of 760121126561 is 165621121067.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 165621121067 = 176179 ⋅940073.

It can be written as a sum of positive squares in 2 ways, for example, as 172292236561 + 587828890000 = 415081^2 + 766700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-760121126561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (760121126161) 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, 445556666 + ... + 445558371.

It is an arithmetic number, because the mean of its divisors is an integer number (190253060613).

Almost surely, 2^760121126561 is an apocalyptic number.

It is an amenable number.

760121126561 is a deficient number, since it is larger than the sum of its proper divisors (891115891).

760121126561 is an equidigital number, since it uses as much as digits as its factorization.

760121126561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891115890.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 760121126561 in words is "seven hundred sixty billion, one hundred twenty-one million, one hundred twenty-six thousand, five hundred sixty-one".