27875863849856 has 64 divisors (see below), whose sum is σ = 60585170834160. Its totient is φ = 12670286131200.

The previous prime is 27875863849829. The next prime is 27875863849861. The reversal of 27875863849856 is 65894836857872.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×27875863849856² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32234636 + ... + 33088116.

Almost surely, 2^{27875863849856} is an apocalyptic number.

It is an amenable number.

27875863849856 is an abundant number, since it is smaller than the sum of its proper divisors (32709306984304).

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

27875863849856 is a wasteful number, since it uses less digits than its factorization.

27875863849856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876703 (or 876691 counting only the distinct ones).

The product of its digits is 39016857600, while the sum is 86.

The spelling of 27875863849856 in words is "twenty-seven trillion, eight hundred seventy-five billion, eight hundred sixty-three million, eight hundred forty-nine thousand, eight hundred fifty-six".