766423767324667 has 4 divisors (see below), whose sum is σ = 766423932363280. Its totient is φ = 766423602286056.

The previous prime is 766423767324647. The next prime is 766423767324689.

766423767324667 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 766423767324667 - 2¹⁹ = 766423766800379 is a prime.

It is a super-2 number, since 2×766423767324667² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 766423767324593 and 766423767324602.

It is not an unprimeable number, because it can be changed into a prime (766423767324617) 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, 75345567 + ... + 84910552.

It is an arithmetic number, because the mean of its divisors is an integer number (191605983090820).

Almost surely, 2^{766423767324667} is an apocalyptic number.

766423767324667 is a deficient number, since it is larger than the sum of its proper divisors (165038613).

766423767324667 is a wasteful number, since it uses less digits than its factorization.

766423767324667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165038612.

The product of its digits is 10754021376, while the sum is 76.

The spelling of 766423767324667 in words is "seven hundred sixty-six trillion, four hundred twenty-three billion, seven hundred sixty-seven million, three hundred twenty-four thousand, six hundred sixty-seven".