27769312389 has 48 divisors (see below), whose sum is σ = 46459432320. Its totient is φ = 14623701120.

The previous prime is 27769312367. The next prime is 27769312391. The reversal of 27769312389 is 98321396772.

It is not a de Polignac number, because 27769312389 - 2²⁰ = 27768263813 is a prime.

It is a super-2 number, since 2×27769312389² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27769312309) 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 47 ways as a sum of consecutive naturals, for example, 1194327 + ... + 1217355.

It is an arithmetic number, because the mean of its divisors is an integer number (967904840).

Almost surely, 2^27769312389 is an apocalyptic number.

It is an amenable number.

27769312389 is a deficient number, since it is larger than the sum of its proper divisors (18690119931).

27769312389 is a wasteful number, since it uses less digits than its factorization.

27769312389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23690 (or 23683 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 57.

The spelling of 27769312389 in words is "twenty-seven billion, seven hundred sixty-nine million, three hundred twelve thousand, three hundred eighty-nine".