6423764128 has 12 divisors (see below), whose sum is σ = 12646785690. Its totient is φ = 3211882048.

The previous prime is 6423764119. The next prime is 6423764183. The reversal of 6423764128 is 8214673246.

It can be written as a sum of positive squares in only one way, i.e., 5629200784 + 794563344 = 75028^2 + 28188^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100371283 + ... + 100371346.

Almost surely, 2^6423764128 is an apocalyptic number.

It is an amenable number.

6423764128 is a deficient number, since it is larger than the sum of its proper divisors (6223021562).

6423764128 is a wasteful number, since it uses less digits than its factorization.

6423764128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200742639 (or 200742631 counting only the distinct ones).

The product of its digits is 387072, while the sum is 43.

The square root of 6423764128 is about 80148.3881809235. The cubic root of 6423764128 is about 1858.9306806959.

The spelling of 6423764128 in words is "six billion, four hundred twenty-three million, seven hundred sixty-four thousand, one hundred twenty-eight".