27494866368 has 56 divisors (see below), whose sum is σ = 80829820560. Its totient is φ = 9164954880.

The previous prime is 27494866367. The next prime is 27494866381. The reversal of 27494866368 is 86366849472.

27494866368 is a `hidden beast` number, since 2 + 7 + 494 + 86 + 6 + 3 + 68 = 666.

It is a super-2 number, since 2×27494866368² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27494866367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7953963 + ... + 7957418.

Almost surely, 2^27494866368 is an apocalyptic number.

It is an amenable number.

27494866368 is an abundant number, since it is smaller than the sum of its proper divisors (53334954192).

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

27494866368 is a wasteful number, since it uses less digits than its factorization.

27494866368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15911402 (or 15911386 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 63.

The spelling of 27494866368 in words is "twenty-seven billion, four hundred ninety-four million, eight hundred sixty-six thousand, three hundred sixty-eight".