6128587972 has 24 divisors (see below), whose sum is σ = 11616811416. Its totient is φ = 2812224768.

The previous prime is 6128587931. The next prime is 6128588017. The reversal of 6128587972 is 2797858216.

It can be written as a sum of positive squares in 4 ways, for example, as 26790976 + 6101796996 = 5176^2 + 78114^2 .

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, 331633 + ... + 349624.

It is an arithmetic number, because the mean of its divisors is an integer number (484033809).

Almost surely, 2^6128587972 is an apocalyptic number.

It is an amenable number.

6128587972 is a deficient number, since it is larger than the sum of its proper divisors (5488223444).

6128587972 is a wasteful number, since it uses less digits than its factorization.

6128587972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681447 (or 681445 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 55.

The square root of 6128587972 is about 78285.2985687607. The cubic root of 6128587972 is about 1830.0100502101.

The spelling of 6128587972 in words is "six billion, one hundred twenty-eight million, five hundred eighty-seven thousand, nine hundred seventy-two".