27375666840 has 48 divisors (see below), whose sum is σ = 88970918400. Its totient is φ = 7300177728.

The previous prime is 27375666839. The next prime is 27375666847. The reversal of 27375666840 is 4866657372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27375666847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38021400 + ... + 38022119.

It is an arithmetic number, because the mean of its divisors is an integer number (1853560800).

Almost surely, 2^27375666840 is an apocalyptic number.

27375666840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27375666840 is an abundant number, since it is smaller than the sum of its proper divisors (61595251560).

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

27375666840 is a wasteful number, since it uses less digits than its factorization.

27375666840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76043536 (or 76043529 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 27375666840 in words is "twenty-seven billion, three hundred seventy-five million, six hundred sixty-six thousand, eight hundred forty".