27993027369868 has 96 divisors (see below), whose sum is σ = 56486129236992. Its totient is φ = 12014196480000.

The previous prime is 27993027369863. The next prime is 27993027369871. The reversal of 27993027369868 is 86896372039972.

It is not an unprimeable number, because it can be changed into a prime (27993027369863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32196868 + ... + 33054868.

It is an arithmetic number, because the mean of its divisors is an integer number (588397179552).

Almost surely, 2^{27993027369868} is an apocalyptic number.

It is an amenable number.

27993027369868 is an abundant number, since it is smaller than the sum of its proper divisors (28493101867124).

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

27993027369868 is a wasteful number, since it uses less digits than its factorization.

27993027369868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858455 (or 858453 counting only the distinct ones).

The product of its (nonzero) digits is 2962842624, while the sum is 79.

The spelling of 27993027369868 in words is "twenty-seven trillion, nine hundred ninety-three billion, twenty-seven million, three hundred sixty-nine thousand, eight hundred sixty-eight".