6423764129 has 4 divisors (see below), whose sum is σ = 6435174576. Its totient is φ = 6412353684.

The previous prime is 6423764119. The next prime is 6423764183. The reversal of 6423764129 is 9214673246.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9214673246 = 2 ⋅4607336623.

It is a cyclic number.

It is not a de Polignac number, because 6423764129 - 2³² = 2128796833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6423764129.

It is not an unprimeable number, because it can be changed into a prime (6423764119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5704379 + ... + 5705504.

It is an arithmetic number, because the mean of its divisors is an integer number (1608793644).

Almost surely, 2^6423764129 is an apocalyptic number.

It is an amenable number.

6423764129 is a deficient number, since it is larger than the sum of its proper divisors (11410447).

6423764129 is a wasteful number, since it uses less digits than its factorization.

6423764129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11410446.

The product of its digits is 435456, while the sum is 44.

The square root of 6423764129 is about 80148.3881871619. The cubic root of 6423764129 is about 1858.9306807923.

The spelling of 6423764129 in words is "six billion, four hundred twenty-three million, seven hundred sixty-four thousand, one hundred twenty-nine".