27475433220 has 48 divisors (see below), whose sum is σ = 77403211200. Its totient is φ = 7281830016.

The previous prime is 27475433177. The next prime is 27475433221. The reversal of 27475433220 is 2233457472.

It is not an unprimeable number, because it can be changed into a prime (27475433221) 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 15 ways as a sum of consecutive naturals, for example, 1394895 + ... + 1414454.

It is an arithmetic number, because the mean of its divisors is an integer number (1612566900).

Almost surely, 2^27475433220 is an apocalyptic number.

27475433220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27475433220 is an abundant number, since it is smaller than the sum of its proper divisors (49927777980).

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

27475433220 is a wasteful number, since it uses less digits than its factorization.

27475433220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809524 (or 2809522 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 39.

The spelling of 27475433220 in words is "twenty-seven billion, four hundred seventy-five million, four hundred thirty-three thousand, two hundred twenty".