766685425323 has 4 divisors (see below), whose sum is σ = 1022247233768. Its totient is φ = 511123616880.

The previous prime is 766685425313. The next prime is 766685425333. The reversal of 766685425323 is 323524586667.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (766685425313) and next prime (766685425333).

It is not a de Polignac number, because 766685425323 - 2⁹ = 766685424811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (766685425313) by changing a digit.

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, 127780904218 + ... + 127780904223.

It is an arithmetic number, because the mean of its divisors is an integer number (255561808442).

Almost surely, 2^766685425323 is an apocalyptic number.

766685425323 is a deficient number, since it is larger than the sum of its proper divisors (255561808445).

766685425323 is a wasteful number, since it uses less digits than its factorization.

766685425323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255561808444.

The product of its digits is 43545600, while the sum is 57.

The spelling of 766685425323 in words is "seven hundred sixty-six billion, six hundred eighty-five million, four hundred twenty-five thousand, three hundred twenty-three".