27752308137 has 6 divisors (see below), whose sum is σ = 40086667322. Its totient is φ = 18501538752.

The previous prime is 27752308069. The next prime is 27752308141. The reversal of 27752308137 is 73180325772.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 27312189696 + 440118441 = 165264^2 + 20979^2 .

It is not a de Polignac number, because 27752308137 - 2⁸ = 27752307881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27752308092 and 27752308101.

It is not an unprimeable number, because it can be changed into a prime (27750308137) 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 5 ways as a sum of consecutive naturals, for example, 1541794888 + ... + 1541794905.

Almost surely, 2^27752308137 is an apocalyptic number.

It is an amenable number.

27752308137 is a deficient number, since it is larger than the sum of its proper divisors (12334359185).

27752308137 is a wasteful number, since it uses less digits than its factorization.

27752308137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3083589799 (or 3083589796 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The spelling of 27752308137 in words is "twenty-seven billion, seven hundred fifty-two million, three hundred eight thousand, one hundred thirty-seven".