27138496852 has 12 divisors (see below), whose sum is σ = 47766893076. Its totient is φ = 13490813120.

The previous prime is 27138496817. The next prime is 27138496867. The reversal of 27138496852 is 25869483172.

It can be written as a sum of positive squares in 2 ways, for example, as 17306981136 + 9831515716 = 131556^2 + 99154^2 .

It is a super-2 number, since 2×27138496852² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27138496793 and 27138496802.

It is a congruent number.

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, 19608049 + ... + 19609432.

It is an arithmetic number, because the mean of its divisors is an integer number (3980574423).

Almost surely, 2^27138496852 is an apocalyptic number.

It is an amenable number.

27138496852 is a deficient number, since it is larger than the sum of its proper divisors (20628396224).

27138496852 is a wasteful number, since it uses less digits than its factorization.

27138496852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39217658 (or 39217656 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 55.

The spelling of 27138496852 in words is "twenty-seven billion, one hundred thirty-eight million, four hundred ninety-six thousand, eight hundred fifty-two".