27989666698972 has 48 divisors (see below), whose sum is σ = 54873338526720. Its totient is φ = 12384607435200.

The previous prime is 27989666698801. The next prime is 27989666698999.

27989666698972 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56459283 + ... + 56952874.

It is an arithmetic number, because the mean of its divisors is an integer number (1143194552640).

Almost surely, 2^{27989666698972} is an apocalyptic number.

27989666698972 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27989666698972 is a deficient number, since it is larger than the sum of its proper divisors (26883671827748).

27989666698972 is a wasteful number, since it uses less digits than its factorization.

27989666698972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113412322 (or 113412320 counting only the distinct ones).

The product of its digits is 106662334464, while the sum is 94.

The spelling of 27989666698972 in words is "twenty-seven trillion, nine hundred eighty-nine billion, six hundred sixty-six million, six hundred ninety-eight thousand, nine hundred seventy-two".