27980067500689 has 8 divisors (see below), whose sum is σ = 29196863879040. Its totient is φ = 26763293764416.

The previous prime is 27980067500659. The next prime is 27980067500701. The reversal of 27980067500689 is 98600576008972.

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 27980067500689 - 2¹¹ = 27980067498641 is a prime.

It is a super-2 number, since 2×27980067500689² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27980067500659) 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, 3110829 + ... + 8101690.

It is an arithmetic number, because the mean of its divisors is an integer number (3649607984880).

Almost surely, 2^{27980067500689} is an apocalyptic number.

It is an amenable number.

27980067500689 is a deficient number, since it is larger than the sum of its proper divisors (1216796378351).

27980067500689 is a wasteful number, since it uses less digits than its factorization.

27980067500689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11321039.

The product of its (nonzero) digits is 91445760, while the sum is 67.

The spelling of 27980067500689 in words is "twenty-seven trillion, nine hundred eighty billion, sixty-seven million, five hundred thousand, six hundred eighty-nine".