6243128552 has 32 divisors (see below), whose sum is σ = 12401569800. Its totient is φ = 2936254464.

The previous prime is 6243128539. The next prime is 6243128599. The reversal of 6243128552 is 2558213426.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5683048996 + 560079556 = 75386^2 + 23666^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242474 + ... + 266982.

Almost surely, 2^6243128552 is an apocalyptic number.

It is an amenable number.

6243128552 is a deficient number, since it is larger than the sum of its proper divisors (6158441248).

6243128552 is a wasteful number, since it uses less digits than its factorization.

6243128552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26405 (or 26401 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The square root of 6243128552 is about 79013.4706996218. The cubic root of 6243128552 is about 1841.3404449527.

The spelling of 6243128552 in words is "six billion, two hundred forty-three million, one hundred twenty-eight thousand, five hundred fifty-two".