27806225880 has 32 divisors (see below), whose sum is σ = 83418678000. Its totient is φ = 7414993536.

The previous prime is 27806225879. The next prime is 27806225891. The reversal of 27806225880 is 8852260872.

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, 115859155 + ... + 115859394.

Almost surely, 2^27806225880 is an apocalyptic number.

27806225880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27806225880 is an abundant number, since it is smaller than the sum of its proper divisors (55612452120).

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

27806225880 is a wasteful number, since it uses less digits than its factorization.

27806225880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231718563 (or 231718559 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 48.

The spelling of 27806225880 in words is "twenty-seven billion, eight hundred six million, two hundred twenty-five thousand, eight hundred eighty".