28077115223 has 16 divisors (see below), whose sum is σ = 29612757600. Its totient is φ = 26579978880.

The previous prime is 28077115219. The next prime is 28077115229. The reversal of 28077115223 is 32251177082.

It is a cyclic number.

It is not a de Polignac number, because 28077115223 - 2² = 28077115219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28077115229) 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, 2744588 + ... + 2754798.

It is an arithmetic number, because the mean of its divisors is an integer number (1850797350).

Almost surely, 2^28077115223 is an apocalyptic number.

28077115223 is a deficient number, since it is larger than the sum of its proper divisors (1535642377).

28077115223 is a wasteful number, since it uses less digits than its factorization.

28077115223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12082.

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 28077115223 in words is "twenty-eight billion, seventy-seven million, one hundred fifteen thousand, two hundred twenty-three".