27727125538 has 8 divisors (see below), whose sum is σ = 47532215232. Its totient is φ = 11883053796.

The previous prime is 27727125523. The next prime is 27727125553. The reversal of 27727125538 is 83552172772.

It is an interprime number because it is at equal distance from previous prime (27727125523) and next prime (27727125553).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 27727125491 and 27727125500.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 990254470 + ... + 990254497.

It is an arithmetic number, because the mean of its divisors is an integer number (5941526904).

Almost surely, 2^27727125538 is an apocalyptic number.

27727125538 is a deficient number, since it is larger than the sum of its proper divisors (19805089694).

27727125538 is a wasteful number, since it uses less digits than its factorization.

27727125538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980508976.

The product of its digits is 1646400, while the sum is 49.

The spelling of 27727125538 in words is "twenty-seven billion, seven hundred twenty-seven million, one hundred twenty-five thousand, five hundred thirty-eight".