28831075784 has 32 divisors (see below), whose sum is σ = 61799162880. Its totient is φ = 12352518144.

The previous prime is 28831075781. The next prime is 28831075789. The reversal of 28831075784 is 48757013882.

It is not an unprimeable number, because it can be changed into a prime (28831075781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119129 + ... + 268055.

It is an arithmetic number, because the mean of its divisors is an integer number (1931223840).

Almost surely, 2^28831075784 is an apocalyptic number.

It is an amenable number.

28831075784 is an abundant number, since it is smaller than the sum of its proper divisors (32968087096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28831075784 is a wasteful number, since it uses less digits than its factorization.

28831075784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152397 (or 152393 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 53.

The spelling of 28831075784 in words is "twenty-eight billion, eight hundred thirty-one million, seventy-five thousand, seven hundred eighty-four".