28227911726 has 36 divisors (see below), whose sum is σ = 49071455496. Its totient is φ = 11929829040.

The previous prime is 28227911717. The next prime is 28227911729. The reversal of 28227911726 is 62711972282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28227911729) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 52177016 + ... + 52177556.

It is an arithmetic number, because the mean of its divisors is an integer number (1363095986).

Almost surely, 2^28227911726 is an apocalyptic number.

28227911726 is a deficient number, since it is larger than the sum of its proper divisors (20843543770).

28227911726 is an frugal number, since it uses more digits than its factorization.

28227911726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257 (or 633 counting only the distinct ones).

The product of its digits is 338688, while the sum is 47.

The spelling of 28227911726 in words is "twenty-eight billion, two hundred twenty-seven million, nine hundred eleven thousand, seven hundred twenty-six".