27900089281 has 8 divisors (see below), whose sum is σ = 28329241184. Its totient is φ = 27471312000.

The previous prime is 27900089251. The next prime is 27900089299. The reversal of 27900089281 is 18298000972.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27900089281 - 2¹³ = 27900081089 is a prime.

It is a super-2 number, since 2×27900089281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27900089251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58321 + ... + 243313.

It is an arithmetic number, because the mean of its divisors is an integer number (3541155148).

Almost surely, 2^27900089281 is an apocalyptic number.

It is an amenable number.

27900089281 is a deficient number, since it is larger than the sum of its proper divisors (429151903).

27900089281 is a wasteful number, since it uses less digits than its factorization.

27900089281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187311.

The product of its (nonzero) digits is 145152, while the sum is 46.

The spelling of 27900089281 in words is "twenty-seven billion, nine hundred million, eighty-nine thousand, two hundred eighty-one".