764135745 has 8 divisors (see below), whose sum is σ = 1222617216. Its totient is φ = 407539056.

The previous prime is 764135731. The next prime is 764135753. The reversal of 764135745 is 547531467.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 764135745 - 2¹² = 764131649 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 764135697 and 764135706.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25471177 + ... + 25471206.

It is an arithmetic number, because the mean of its divisors is an integer number (152827152).

Almost surely, 2^764135745 is an apocalyptic number.

It is an amenable number.

764135745 is a deficient number, since it is larger than the sum of its proper divisors (458481471).

764135745 is a wasteful number, since it uses less digits than its factorization.

764135745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50942391.

The product of its digits is 352800, while the sum is 42.

The square root of 764135745 is about 27643.0053539770. The cubic root of 764135745 is about 914.2328844742.

The spelling of 764135745 in words is "seven hundred sixty-four million, one hundred thirty-five thousand, seven hundred forty-five".