764206106871 has 4 divisors (see below), whose sum is σ = 1018941475832. Its totient is φ = 509470737912.

The previous prime is 764206106863. The next prime is 764206106891. The reversal of 764206106871 is 178601602467.

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

It is not a de Polignac number, because 764206106871 - 2³ = 764206106863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 764206106871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764206106891) 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, 127367684476 + ... + 127367684481.

It is an arithmetic number, because the mean of its divisors is an integer number (254735368958).

Almost surely, 2^764206106871 is an apocalyptic number.

764206106871 is a deficient number, since it is larger than the sum of its proper divisors (254735368961).

764206106871 is a wasteful number, since it uses less digits than its factorization.

764206106871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254735368960.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 764206106871 in words is "seven hundred sixty-four billion, two hundred six million, one hundred six thousand, eight hundred seventy-one".