27898203280 has 40 divisors (see below), whose sum is σ = 67683471552. Its totient is φ = 10674094464.

The previous prime is 27898203259. The next prime is 27898203283. The reversal of 27898203280 is 8230289872.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-4 number, since 4×27898203280⁴ (a number of 43 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (27898203283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7579194 + ... + 7582873.

Almost surely, 2^27898203280 is an apocalyptic number.

27898203280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27898203280 is an abundant number, since it is smaller than the sum of its proper divisors (39785268272).

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

27898203280 is a wasteful number, since it uses less digits than its factorization.

27898203280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15162103 (or 15162097 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 27898203280 in words is "twenty-seven billion, eight hundred ninety-eight million, two hundred three thousand, two hundred eighty".