27064622720 has 32 divisors (see below), whose sum is σ = 64701365220. Its totient is φ = 10825848832.

The previous prime is 27064622701. The next prime is 27064622749. The reversal of 27064622720 is 2722646072.

It can be written as a sum of positive squares in 2 ways, for example, as 26262147136 + 802475584 = 162056^2 + 28328^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21143597 + ... + 21144876.

Almost surely, 2^27064622720 is an apocalyptic number.

27064622720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27064622720 is an abundant number, since it is smaller than the sum of its proper divisors (37636742500).

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

27064622720 is an equidigital number, since it uses as much as digits as its factorization.

27064622720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42288492 (or 42288480 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 38.

The spelling of 27064622720 in words is "twenty-seven billion, sixty-four million, six hundred twenty-two thousand, seven hundred twenty".