28263116105 has 16 divisors (see below), whose sum is σ = 40446100224. Its totient is φ = 18537794880.

The previous prime is 28263116069. The next prime is 28263116143. The reversal of 28263116105 is 50161136282.

It is a de Polignac number, because none of the positive numbers 2^k-28263116105 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17553926 + ... + 17555535.

It is an arithmetic number, because the mean of its divisors is an integer number (2527881264).

Almost surely, 2^28263116105 is an apocalyptic number.

It is an amenable number.

28263116105 is a deficient number, since it is larger than the sum of its proper divisors (12182984119).

28263116105 is a wasteful number, since it uses less digits than its factorization.

28263116105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35109496.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 28263116105 in words is "twenty-eight billion, two hundred sixty-three million, one hundred sixteen thousand, one hundred five".