27876069693 has 12 divisors (see below), whose sum is σ = 41353689468. Its totient is φ = 18081774720.

The previous prime is 27876069677. The next prime is 27876069701. The reversal of 27876069693 is 39696067872.

It can be written as a sum of positive squares in 2 ways, for example, as 18575781849 + 9300287844 = 136293^2 + 96438^2 .

It is not a de Polignac number, because 27876069693 - 2⁴ = 27876069677 is a prime.

It is a super-2 number, since 2×27876069693² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27876069693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27876069653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41855628 + ... + 41856293.

It is an arithmetic number, because the mean of its divisors is an integer number (3446140789).

Almost surely, 2^27876069693 is an apocalyptic number.

It is an amenable number.

27876069693 is a deficient number, since it is larger than the sum of its proper divisors (13477619775).

27876069693 is a wasteful number, since it uses less digits than its factorization.

27876069693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83711964 (or 83711961 counting only the distinct ones).

The product of its (nonzero) digits is 41150592, while the sum is 63.

The spelling of 27876069693 in words is "twenty-seven billion, eight hundred seventy-six million, sixty-nine thousand, six hundred ninety-three".