27012470840 has 64 divisors (see below), whose sum is σ = 61599324960. Its totient is φ = 10659962880.

The previous prime is 27012470839. The next prime is 27012470843. The reversal of 27012470840 is 4807421072.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 27012470840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27012470843) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 878120 + ... + 908360.

Almost surely, 2^27012470840 is an apocalyptic number.

27012470840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27012470840 is an abundant number, since it is smaller than the sum of its proper divisors (34586854120).

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

27012470840 is a wasteful number, since it uses less digits than its factorization.

27012470840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30552 (or 30548 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 35.

The spelling of 27012470840 in words is "twenty-seven billion, twelve million, four hundred seventy thousand, eight hundred forty".