27073072720 has 80 divisors (see below), whose sum is σ = 63401513472. Its totient is φ = 10750970880.

The previous prime is 27073072711. The next prime is 27073072723. The reversal of 27073072720 is 2727037072.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 27073072720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27073072723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6583465 + ... + 6587575.

Almost surely, 2^27073072720 is an apocalyptic number.

27073072720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27073072720 is an abundant number, since it is smaller than the sum of its proper divisors (36328440752).

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

27073072720 is a wasteful number, since it uses less digits than its factorization.

27073072720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4700 (or 4694 counting only the distinct ones).

The product of its (nonzero) digits is 57624, while the sum is 37.

The spelling of 27073072720 in words is "twenty-seven billion, seventy-three million, seventy-two thousand, seven hundred twenty".