27064622749 has 2 divisors, whose sum is σ = 27064622750. Its totient is φ = 27064622748.

The previous prime is 27064622701. The next prime is 27064622807. The reversal of 27064622749 is 94722646072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18484305849 + 8580316900 = 135957^2 + 92630^2 .

It is a cyclic number.

It is not a de Polignac number, because 27064622749 - 2²¹ = 27062525597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27064628749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13532311374 + 13532311375.

It is an arithmetic number, because the mean of its divisors is an integer number (13532311375).

Almost surely, 2^27064622749 is an apocalyptic number.

It is an amenable number.

27064622749 is a deficient number, since it is larger than the sum of its proper divisors (1).

27064622749 is an equidigital number, since it uses as much as digits as its factorization.

27064622749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128, while the sum is 49.

The spelling of 27064622749 in words is "twenty-seven billion, sixty-four million, six hundred twenty-two thousand, seven hundred forty-nine".