28115162786 has 16 divisors (see below), whose sum is σ = 44010000000. Its totient is φ = 13445264448.

The previous prime is 28115162773. The next prime is 28115162821. The reversal of 28115162786 is 68726151182.

It is a self number, because there is not a number n which added to its sum of digits gives 28115162786.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 884090 + ... + 915338.

It is an arithmetic number, because the mean of its divisors is an integer number (2750625000).

Almost surely, 2^28115162786 is an apocalyptic number.

28115162786 is a deficient number, since it is larger than the sum of its proper divisors (15894837214).

28115162786 is a wasteful number, since it uses less digits than its factorization.

28115162786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50833.

The product of its digits is 322560, while the sum is 47.

The spelling of 28115162786 in words is "twenty-eight billion, one hundred fifteen million, one hundred sixty-two thousand, seven hundred eighty-six".