28055867718 has 16 divisors (see below), whose sum is σ = 56363360256. Its totient is φ = 9310018440.

The previous prime is 28055867713. The next prime is 28055867729. The reversal of 28055867718 is 81776855082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28055867713) 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, 10482918 + ... + 10485593.

It is an arithmetic number, because the mean of its divisors is an integer number (3522710016).

Almost surely, 2^28055867718 is an apocalyptic number.

28055867718 is an abundant number, since it is smaller than the sum of its proper divisors (28307492538).

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

28055867718 is a wasteful number, since it uses less digits than its factorization.

28055867718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20968739.

The product of its (nonzero) digits is 7526400, while the sum is 57.

The spelling of 28055867718 in words is "twenty-eight billion, fifty-five million, eight hundred sixty-seven thousand, seven hundred eighteen".