764241742741 has 4 divisors (see below), whose sum is σ = 772120523692. Its totient is φ = 756362961792.

The previous prime is 764241742721. The next prime is 764241742753. The reversal of 764241742741 is 147247142467.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 636277428900 + 127964313841 = 797670^2 + 357721^2 .

It is a cyclic number.

It is not a de Polignac number, because 764241742741 - 2⁵ = 764241742709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764241742721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3939390330 + ... + 3939390523.

It is an arithmetic number, because the mean of its divisors is an integer number (193030130923).

Almost surely, 2^764241742741 is an apocalyptic number.

It is an amenable number.

764241742741 is a deficient number, since it is larger than the sum of its proper divisors (7878780951).

764241742741 is an equidigital number, since it uses as much as digits as its factorization.

764241742741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7878780950.

The product of its digits is 2107392, while the sum is 49.

The spelling of 764241742741 in words is "seven hundred sixty-four billion, two hundred forty-one million, seven hundred forty-two thousand, seven hundred forty-one".