764221601079 has 24 divisors (see below), whose sum is σ = 1145397904560. Its totient is φ = 490600862208.

The previous prime is 764221601071. The next prime is 764221601081. The reversal of 764221601079 is 970106122467.

It is not a de Polignac number, because 764221601079 - 2³ = 764221601071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764221601071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11797389 + ... + 11861990.

It is an arithmetic number, because the mean of its divisors is an integer number (47724912690).

Almost surely, 2^764221601079 is an apocalyptic number.

764221601079 is a deficient number, since it is larger than the sum of its proper divisors (381176303481).

764221601079 is a wasteful number, since it uses less digits than its factorization.

764221601079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23659519 (or 23659516 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 764221601079 in words is "seven hundred sixty-four billion, two hundred twenty-one million, six hundred one thousand, seventy-nine".