27816697152 has 42 divisors (see below), whose sum is σ = 79731541578. Its totient is φ = 9272232192.

The previous prime is 27816697133. The next prime is 27816697171. The reversal of 27816697152 is 25179661872.

It is an interprime number because it is at equal distance from previous prime (27816697133) and next prime (27816697171).

It can be written as a sum of positive squares in only one way, i.e., 27694285056 + 122412096 = 166416^2 + 11064^2 .

It is a super-2 number, since 2×27816697152² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24145863 + ... + 24147014.

Almost surely, 2^27816697152 is an apocalyptic number.

It is an amenable number.

27816697152 is an abundant number, since it is smaller than the sum of its proper divisors (51914844426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27816697152 is a wasteful number, since it uses less digits than its factorization.

27816697152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48292895 (or 48292882 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The spelling of 27816697152 in words is "twenty-seven billion, eight hundred sixteen million, six hundred ninety-seven thousand, one hundred fifty-two".