27400717824 has 40 divisors (see below), whose sum is σ = 72997228920. Its totient is φ = 9133572096.

The previous prime is 27400717777. The next prime is 27400717837. The reversal of 27400717824 is 42871700472.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 8917969 + ... + 8921040.

It is an arithmetic number, because the mean of its divisors is an integer number (1824930723).

Almost surely, 2^27400717824 is an apocalyptic number.

27400717824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

27400717824 is an abundant number, since it is smaller than the sum of its proper divisors (45596511096).

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

27400717824 is an equidigital number, since it uses as much as digits as its factorization.

27400717824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17839030 (or 17839014 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 42.

The spelling of 27400717824 in words is "twenty-seven billion, four hundred million, seven hundred seventeen thousand, eight hundred twenty-four".