764867437489 has 3 divisors (see below), whose sum is σ = 764868312057. Its totient is φ = 764866562922.

The previous prime is 764867437469. The next prime is 764867437513. The reversal of 764867437489 is 984734768467.

The square root of 764867437489 is 874567.

It is a perfect power (a square), and thus also a powerful number.

764867437489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 764867437489 - 2¹³ = 764867429297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (764867437459) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 437284 + ... + 1311850.

It is an arithmetic number, because the mean of its divisors is an integer number (254956104019).

Almost surely, 2^764867437489 is an apocalyptic number.

764867437489 is the 874567-th square number.

764867437489 is the 437284-th centered octagonal number.

It is an amenable number.

764867437489 is a deficient number, since it is larger than the sum of its proper divisors (874568).

764867437489 is an frugal number, since it uses more digits than its factorization.

764867437489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749134 (or 874567 counting only the distinct ones).

The product of its digits is 1365590016, while the sum is 73.

The spelling of 764867437489 in words is "seven hundred sixty-four billion, eight hundred sixty-seven million, four hundred thirty-seven thousand, four hundred eighty-nine".