27408347012864 has 36 divisors (see below), whose sum is σ = 54711053726784. Its totient is φ = 13703816921088.

The previous prime is 27408347012861. The next prime is 27408347012939. The reversal of 27408347012864 is 46821074380472.

It is a super-3 number, since 3×27408347012864³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27408347012861) 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 3 ways as a sum of consecutive naturals, for example, 8604689 + ... + 11351535.

Almost surely, 2^{27408347012864} is an apocalyptic number.

It is an amenable number.

27408347012864 is a deficient number, since it is larger than the sum of its proper divisors (27302706713920).

27408347012864 is an equidigital number, since it uses as much as digits as its factorization.

27408347012864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2785840 (or 2785826 counting only the distinct ones).

The product of its (nonzero) digits is 14450688, while the sum is 56.

The spelling of 27408347012864 in words is "twenty-seven trillion, four hundred eight billion, three hundred forty-seven million, twelve thousand, eight hundred sixty-four".