28057508258 has 32 divisors (see below), whose sum is σ = 46606238784. Its totient is φ = 12584037312.

The previous prime is 28057508257. The next prime is 28057508261. The reversal of 28057508258 is 85280575082.

28057508258 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (28057508257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 777941 + ... + 813207.

It is an arithmetic number, because the mean of its divisors is an integer number (1456444962).

Almost surely, 2^28057508258 is an apocalyptic number.

28057508258 is a deficient number, since it is larger than the sum of its proper divisors (18548730526).

28057508258 is a wasteful number, since it uses less digits than its factorization.

28057508258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36146.

The product of its (nonzero) digits is 1792000, while the sum is 50.

The spelling of 28057508258 in words is "twenty-eight billion, fifty-seven million, five hundred eight thousand, two hundred fifty-eight".