764216610863 has 4 divisors (see below), whose sum is σ = 765874348008. Its totient is φ = 762558873720.

The previous prime is 764216610791. The next prime is 764216610931. The reversal of 764216610863 is 368016612467.

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 764216610863 - 2¹⁸ = 764216348719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764216610463) 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, 828867881 + ... + 828868802.

It is an arithmetic number, because the mean of its divisors is an integer number (191468587002).

Almost surely, 2^764216610863 is an apocalyptic number.

764216610863 is a deficient number, since it is larger than the sum of its proper divisors (1657737145).

764216610863 is a wasteful number, since it uses less digits than its factorization.

764216610863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657737144.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 764216610863 in words is "seven hundred sixty-four billion, two hundred sixteen million, six hundred ten thousand, eight hundred sixty-three".