27752002069 has 12 divisors (see below), whose sum is σ = 30509471692. Its totient is φ = 25224788160.

The previous prime is 27752002067. The next prime is 27752002073. The reversal of 27752002069 is 96020025772.

It can be written as a sum of positive squares in 2 ways, for example, as 24278314225 + 3473687844 = 155815^2 + 58938^2 .

It is not a de Polignac number, because 27752002069 - 2¹ = 27752002067 is a prime.

It is a super-2 number, since 2×27752002069² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27752002067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 852439 + ... + 884395.

Almost surely, 2^27752002069 is an apocalyptic number.

It is an amenable number.

27752002069 is a deficient number, since it is larger than the sum of its proper divisors (2757469623).

27752002069 is a wasteful number, since it uses less digits than its factorization.

27752002069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39156 (or 39145 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 27752002069 in words is "twenty-seven billion, seven hundred fifty-two million, two thousand, sixty-nine".