28118187583 has 2 divisors, whose sum is σ = 28118187584. Its totient is φ = 28118187582.

The previous prime is 28118187553. The next prime is 28118187589. The reversal of 28118187583 is 38578181182.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28118187583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28118187583.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28118187589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14059093791 + 14059093792.

It is an arithmetic number, because the mean of its divisors is an integer number (14059093792).

Almost surely, 2^28118187583 is an apocalyptic number.

28118187583 is a deficient number, since it is larger than the sum of its proper divisors (1).

28118187583 is an equidigital number, since it uses as much as digits as its factorization.

28118187583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 860160, while the sum is 52.

The spelling of 28118187583 in words is "twenty-eight billion, one hundred eighteen million, one hundred eighty-seven thousand, five hundred eighty-three".