6404231759 has 4 divisors (see below), whose sum is σ = 6512778120. Its totient is φ = 6295685400.

The previous prime is 6404231747. The next prime is 6404231767. The reversal of 6404231759 is 9571324046.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9571324046 = 2 ⋅4785662023.

It is a cyclic number.

It is not a de Polignac number, because 6404231759 - 2³² = 2109264463 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 (6404239759) 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, 54273092 + ... + 54273209.

It is an arithmetic number, because the mean of its divisors is an integer number (1628194530).

Almost surely, 2^6404231759 is an apocalyptic number.

6404231759 is a deficient number, since it is larger than the sum of its proper divisors (108546361).

6404231759 is a wasteful number, since it uses less digits than its factorization.

6404231759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108546360.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 6404231759 is about 80026.4441231772. Note that the first 3 decimals coincide. The cubic root of 6404231759 is about 1857.0446533975.

The spelling of 6404231759 in words is "six billion, four hundred four million, two hundred thirty-one thousand, seven hundred fifty-nine".