28601811712 has 18 divisors (see below), whose sum is σ = 57091898108. Its totient is φ = 14300905728.

The previous prime is 28601811677. The next prime is 28601811751. The reversal of 28601811712 is 21711810682.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55862658 + ... + 55863169.

Almost surely, 2^28601811712 is an apocalyptic number.

It is an amenable number.

28601811712 is a deficient number, since it is larger than the sum of its proper divisors (28490086396).

28601811712 is an equidigital number, since it uses as much as digits as its factorization.

28601811712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111725843 (or 111725829 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 37.

The spelling of 28601811712 in words is "twenty-eight billion, six hundred one million, eight hundred eleven thousand, seven hundred twelve".