27408252870 has 48 divisors (see below), whose sum is σ = 71289925200. Its totient is φ = 7305947712.

The previous prime is 27408252857. The next prime is 27408252871. The reversal of 27408252870 is 7825280472.

27408252870 is a `hidden beast` number, since 2 + 7 + 40 + 82 + 528 + 7 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27408252871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170581 + ... + 289679.

It is an arithmetic number, because the mean of its divisors is an integer number (1485206775).

Almost surely, 2^27408252870 is an apocalyptic number.

27408252870 is an abundant number, since it is smaller than the sum of its proper divisors (43881672330).

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

27408252870 is a wasteful number, since it uses less digits than its factorization.

27408252870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121669 (or 121666 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 45.

The spelling of 27408252870 in words is "twenty-seven billion, four hundred eight million, two hundred fifty-two thousand, eight hundred seventy".