764446644467 has 12 divisors (see below), whose sum is σ = 871776588984. Its totient is φ = 664736207520.

The previous prime is 764446644449. The next prime is 764446644497.

It is a happy number.

764446644467 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-764446644467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (764446644497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65679578 + ... + 65691215.

It is an arithmetic number, because the mean of its divisors is an integer number (72648049082).

Almost surely, 2^764446644467 is an apocalyptic number.

764446644467 is a deficient number, since it is larger than the sum of its proper divisors (107329944517).

764446644467 is a wasteful number, since it uses less digits than its factorization.

764446644467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131370850 (or 131370827 counting only the distinct ones).

The product of its digits is 260112384, while the sum is 62.

The spelling of 764446644467 in words is "seven hundred sixty-four billion, four hundred forty-six million, six hundred forty-four thousand, four hundred sixty-seven".