27473388872 has 16 divisors (see below), whose sum is σ = 51539730300. Its totient is φ = 13729460800.

The previous prime is 27473388871. The next prime is 27473388911. The reversal of 27473388872 is 27888337472.

It can be written as a sum of positive squares in 2 ways, for example, as 27368408356 + 104980516 = 165434^2 + 10246^2 .

It is a super-2 number, since 2×27473388872² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27473388871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888047 + ... + 918462.

Almost surely, 2^27473388872 is an apocalyptic number.

It is an amenable number.

27473388872 is a deficient number, since it is larger than the sum of its proper divisors (24066341428).

27473388872 is a wasteful number, since it uses less digits than its factorization.

27473388872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808416 (or 1808412 counting only the distinct ones).

The product of its digits is 25288704, while the sum is 59.

The spelling of 27473388872 in words is "twenty-seven billion, four hundred seventy-three million, three hundred eighty-eight thousand, eight hundred seventy-two".