27863728180 has 48 divisors (see below), whose sum is σ = 60139134720. Its totient is φ = 10840123008.

The previous prime is 27863728153. The next prime is 27863728181. The reversal of 27863728180 is 8182736872.

It is a super-2 number, since 2×27863728180² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27863728181) 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, 25747 + ... + 237466.

It is an arithmetic number, because the mean of its divisors is an integer number (1252898640).

Almost surely, 2^27863728180 is an apocalyptic number.

27863728180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27863728180 is an abundant number, since it is smaller than the sum of its proper divisors (32275406540).

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

27863728180 is a wasteful number, since it uses less digits than its factorization.

27863728180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263368 (or 263366 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 52.

The spelling of 27863728180 in words is "twenty-seven billion, eight hundred sixty-three million, seven hundred twenty-eight thousand, one hundred eighty".