27347003640 has 192 divisors, whose sum is σ = 97084915200. Its totient is φ = 6620870400.

The previous prime is 27347003633. The next prime is 27347003669. The reversal of 27347003640 is 4630074372.

It is a happy number.

27347003640 is a `hidden beast` number, since 2 + 7 + 3 + 4 + 7 + 0 + 0 + 3 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 27347003595 and 27347003604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3318325 + ... + 3326555.

It is an arithmetic number, because the mean of its divisors is an integer number (505650600).

Almost surely, 2^27347003640 is an apocalyptic number.

27347003640 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 27347003640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48542457600).

27347003640 is an abundant number, since it is smaller than the sum of its proper divisors (69737911560).

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

27347003640 is a wasteful number, since it uses less digits than its factorization.

27347003640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9098 (or 9091 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 36.

The spelling of 27347003640 in words is "twenty-seven billion, three hundred forty-seven million, three thousand, six hundred forty".