27689439452 has 12 divisors (see below), whose sum is σ = 51306902640. Its totient is φ = 13030324416.

The previous prime is 27689439451. The next prime is 27689439487. The reversal of 27689439452 is 25493498672.

It is a junction number, because it is equal to n+sod(n) for n = 27689439391 and 27689439400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27689439451) 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, 203598752 + ... + 203598887.

It is an arithmetic number, because the mean of its divisors is an integer number (4275575220).

Almost surely, 2^27689439452 is an apocalyptic number.

It is an amenable number.

27689439452 is a deficient number, since it is larger than the sum of its proper divisors (23617463188).

27689439452 is a wasteful number, since it uses less digits than its factorization.

27689439452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407197660 (or 407197658 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 59.

The spelling of 27689439452 in words is "twenty-seven billion, six hundred eighty-nine million, four hundred thirty-nine thousand, four hundred fifty-two".