28111038826 has 16 divisors (see below), whose sum is σ = 45413432064. Its totient is φ = 12973384944.

The previous prime is 28111038803. The next prime is 28111038869. The reversal of 28111038826 is 62883011182.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434175 + ... + 494701.

It is an arithmetic number, because the mean of its divisors is an integer number (2838339504).

Almost surely, 2^28111038826 is an apocalyptic number.

28111038826 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28111038826 is a deficient number, since it is larger than the sum of its proper divisors (17302393238).

28111038826 is a wasteful number, since it uses less digits than its factorization.

28111038826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78405.

The product of its (nonzero) digits is 36864, while the sum is 40.

The spelling of 28111038826 in words is "twenty-eight billion, one hundred eleven million, thirty-eight thousand, eight hundred twenty-six".