766506758273 has 4 divisors (see below), whose sum is σ = 766516306608. Its totient is φ = 766497209940.

The previous prime is 766506758249. The next prime is 766506758279. The reversal of 766506758273 is 372857605667.

766506758273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 372857605667 = 547 ⋅681640961.

It is a cyclic number.

It is not a de Polignac number, because 766506758273 - 2¹⁰ = 766506757249 is a prime.

It is a super-2 number, since 2×766506758273² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (766506758279) 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, 4652723 + ... + 4814648.

It is an arithmetic number, because the mean of its divisors is an integer number (191629076652).

Almost surely, 2^766506758273 is an apocalyptic number.

It is an amenable number.

766506758273 is a deficient number, since it is larger than the sum of its proper divisors (9548335).

766506758273 is an equidigital number, since it uses as much as digits as its factorization.

766506758273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9548334.

The product of its (nonzero) digits is 88905600, while the sum is 62.

The spelling of 766506758273 in words is "seven hundred sixty-six billion, five hundred six million, seven hundred fifty-eight thousand, two hundred seventy-three".