27218430870 has 16 divisors (see below), whose sum is σ = 65324234160. Its totient is φ = 7258248224.

The previous prime is 27218430857. The next prime is 27218430871. The reversal of 27218430870 is 7803481272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27218430871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453640485 + ... + 453640544.

It is an arithmetic number, because the mean of its divisors is an integer number (4082764635).

Almost surely, 2^27218430870 is an apocalyptic number.

27218430870 is an abundant number, since it is smaller than the sum of its proper divisors (38105803290).

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

27218430870 is a wasteful number, since it uses less digits than its factorization.

27218430870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907281039.

The product of its (nonzero) digits is 150528, while the sum is 42.

The spelling of 27218430870 in words is "twenty-seven billion, two hundred eighteen million, four hundred thirty thousand, eight hundred seventy".