764140262065 has 16 divisors (see below), whose sum is σ = 956859982848. Its totient is φ = 584719068736.

The previous prime is 764140262057. The next prime is 764140262143. The reversal of 764140262065 is 560262041467.

764140262065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 764140262065 - 2³ = 764140262057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9154659 + ... + 9237751.

It is an arithmetic number, because the mean of its divisors is an integer number (59803748928).

Almost surely, 2^764140262065 is an apocalyptic number.

It is an amenable number.

764140262065 is a deficient number, since it is larger than the sum of its proper divisors (192719720783).

764140262065 is a wasteful number, since it uses less digits than its factorization.

764140262065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163088.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 764140262065 in words is "seven hundred sixty-four billion, one hundred forty million, two hundred sixty-two thousand, sixty-five".