27939527650 has 48 divisors (see below), whose sum is σ = 52692127488. Its totient is φ = 11020896000.

The previous prime is 27939527621. The next prime is 27939527663. The reversal of 27939527650 is 5672593972.

It is a super-2 number, since 2×27939527650² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27939527591 and 27939527600.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1229895 + ... + 1252405.

It is an arithmetic number, because the mean of its divisors is an integer number (1097752656).

Almost surely, 2^27939527650 is an apocalyptic number.

27939527650 is a deficient number, since it is larger than the sum of its proper divisors (24752599838).

27939527650 is a wasteful number, since it uses less digits than its factorization.

27939527650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22867 (or 22862 counting only the distinct ones).

The product of its (nonzero) digits is 7144200, while the sum is 55.

The spelling of 27939527650 in words is "twenty-seven billion, nine hundred thirty-nine million, five hundred twenty-seven thousand, six hundred fifty".