766728113266 has 8 divisors (see below), whose sum is σ = 1160643474540. Its totient is φ = 379846955088.

The previous prime is 766728113219. The next prime is 766728113287. The reversal of 766728113266 is 662311827667.

It can be written as a sum of positive squares in 2 ways, for example, as 766186853041 + 541260225 = 875321^2 + 23265^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1758550501 + ... + 1758550936.

Almost surely, 2^766728113266 is an apocalyptic number.

766728113266 is a deficient number, since it is larger than the sum of its proper divisors (393915361274).

766728113266 is a wasteful number, since it uses less digits than its factorization.

766728113266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517101548.

The product of its digits is 6096384, while the sum is 55.

The spelling of 766728113266 in words is "seven hundred sixty-six billion, seven hundred twenty-eight million, one hundred thirteen thousand, two hundred sixty-six".