27403916265636 has 48 divisors (see below), whose sum is σ = 64687356760320. Its totient is φ = 9028310452480.

The previous prime is 27403916265613. The next prime is 27403916265637. The reversal of 27403916265636 is 63656261930472.

It is a self number, because there is not a number n which added to its sum of digits gives 27403916265636.

It is not an unprimeable number, because it can be changed into a prime (27403916265637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2629575 + ... + 7856366.

It is an arithmetic number, because the mean of its divisors is an integer number (1347653265840).

Almost surely, 2^{27403916265636} is an apocalyptic number.

It is an amenable number.

27403916265636 is an abundant number, since it is smaller than the sum of its proper divisors (37283440494684).

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

27403916265636 is a wasteful number, since it uses less digits than its factorization.

27403916265636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10488484 (or 10488482 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 60.

The spelling of 27403916265636 in words is "twenty-seven trillion, four hundred three billion, nine hundred sixteen million, two hundred sixty-five thousand, six hundred thirty-six".