764145776 has 40 divisors (see below), whose sum is σ = 1528525680. Its totient is φ = 369847296.

The previous prime is 764145761. The next prime is 764145779. The reversal of 764145776 is 677541467.

764145776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 764145776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764145779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72830 + ... + 82658.

It is an arithmetic number, because the mean of its divisors is an integer number (38213142).

Almost surely, 2^764145776 is an apocalyptic number.

It is an amenable number.

764145776 is an abundant number, since it is smaller than the sum of its proper divisors (764379904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

764145776 is a wasteful number, since it uses less digits than its factorization.

764145776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9993 (or 9987 counting only the distinct ones).

The product of its digits is 987840, while the sum is 47.

The square root of 764145776 is about 27643.1867916852. The cubic root of 764145776 is about 914.2368849108.

The spelling of 764145776 in words is "seven hundred sixty-four million, one hundred forty-five thousand, seven hundred seventy-six".