28270801888 has 48 divisors (see below), whose sum is σ = 64094937984. Its totient is φ = 12023556480.

The previous prime is 28270801861. The next prime is 28270801891. The reversal of 28270801888 is 88810807282.

It is a congruent number.

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, 452370 + ... + 511057.

It is an arithmetic number, because the mean of its divisors is an integer number (1335311208).

Almost surely, 2^28270801888 is an apocalyptic number.

28270801888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28270801888 is an abundant number, since it is smaller than the sum of its proper divisors (35824136096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28270801888 is a wasteful number, since it uses less digits than its factorization.

28270801888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963575 (or 963567 counting only the distinct ones).

The product of its (nonzero) digits is 917504, while the sum is 52.

The spelling of 28270801888 in words is "twenty-eight billion, two hundred seventy million, eight hundred one thousand, eight hundred eighty-eight".