27861864886760 has 64 divisors (see below), whose sum is σ = 63053548778880. Its totient is φ = 11079976193280.

The previous prime is 27861864886741. The next prime is 27861864886769. The reversal of 27861864886760 is 6768846816872.

It is not an unprimeable number, because it can be changed into a prime (27861864886769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434149475 + ... + 434213645.

It is an arithmetic number, because the mean of its divisors is an integer number (985211699670).

Almost surely, 2^{27861864886760} is an apocalyptic number.

27861864886760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27861864886760 is an abundant number, since it is smaller than the sum of its proper divisors (35191683892120).

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

27861864886760 is a wasteful number, since it uses less digits than its factorization.

27861864886760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127098 (or 127094 counting only the distinct ones).

The product of its (nonzero) digits is 2080899072, while the sum is 77.

The spelling of 27861864886760 in words is "twenty-seven trillion, eight hundred sixty-one billion, eight hundred sixty-four million, eight hundred eighty-six thousand, seven hundred sixty".