27687275040 has 48 divisors (see below), whose sum is σ = 87214917888. Its totient is φ = 7383273216.

The previous prime is 27687275039. The next prime is 27687275053. The reversal of 27687275040 is 4057278672.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28840432 + ... + 28841391.

It is an arithmetic number, because the mean of its divisors is an integer number (1816977456).

Almost surely, 2^27687275040 is an apocalyptic number.

27687275040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27687275040 is an abundant number, since it is smaller than the sum of its proper divisors (59527642848).

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

27687275040 is a wasteful number, since it uses less digits than its factorization.

27687275040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57681841 (or 57681833 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 48.

The spelling of 27687275040 in words is "twenty-seven billion, six hundred eighty-seven million, two hundred seventy-five thousand, forty".