27938363560 has 32 divisors (see below), whose sum is σ = 63891837000. Its totient is φ = 10992142080.

The previous prime is 27938363539. The next prime is 27938363569. The reversal of 27938363560 is 6536383972.

It can be written as a sum of positive squares in 4 ways, for example, as 11091881124 + 16846482436 = 105318^2 + 129794^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27938363498 and 27938363507.

It is not an unprimeable number, because it can be changed into a prime (27938363569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5722635 + ... + 5727514.

Almost surely, 2^27938363560 is an apocalyptic number.

27938363560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27938363560 is an abundant number, since it is smaller than the sum of its proper divisors (35953473440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27938363560 is a wasteful number, since it uses less digits than its factorization.

27938363560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11450221 (or 11450217 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 52.

The spelling of 27938363560 in words is "twenty-seven billion, nine hundred thirty-eight million, three hundred sixty-three thousand, five hundred sixty".