27475122140 has 24 divisors (see below), whose sum is σ = 60734481360. Its totient is φ = 10411625088.

The previous prime is 27475122133. The next prime is 27475122163. The reversal of 27475122140 is 4122157472.

It is a self number, because there is not a number n which added to its sum of digits gives 27475122140.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 36151097 + ... + 36151856.

It is an arithmetic number, because the mean of its divisors is an integer number (2530603390).

Almost surely, 2^27475122140 is an apocalyptic number.

27475122140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27475122140 is an abundant number, since it is smaller than the sum of its proper divisors (33259359220).

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

27475122140 is a wasteful number, since it uses less digits than its factorization.

27475122140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72302981 (or 72302979 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

The spelling of 27475122140 in words is "twenty-seven billion, four hundred seventy-five million, one hundred twenty-two thousand, one hundred forty".