27363173640 has 256 divisors, whose sum is σ = 90851604480. Its totient is φ = 6537922560.

The previous prime is 27363173609. The next prime is 27363173683. The reversal of 27363173640 is 4637136372.

It is a junction number, because it is equal to n+sod(n) for n = 27363173592 and 27363173601.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42555159 + ... + 42555801.

It is an arithmetic number, because the mean of its divisors is an integer number (354889080).

Almost surely, 2^27363173640 is an apocalyptic number.

27363173640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27363173640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45425802240).

27363173640 is an abundant number, since it is smaller than the sum of its proper divisors (63488430840).

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

27363173640 is a wasteful number, since it uses less digits than its factorization.

27363173640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084 (or 1080 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 42.

The spelling of 27363173640 in words is "twenty-seven billion, three hundred sixty-three million, one hundred seventy-three thousand, six hundred forty".