27552269797 has 18 divisors (see below), whose sum is σ = 31328464902. Its totient is φ = 24084348624.

The previous prime is 27552269747. The next prime is 27552269809. The reversal of 27552269797 is 79796225572.

It can be written as a sum of positive squares in only one way, i.e., 19074648321 + 8477621476 = 138111^2 + 92074^2 .

It is not a de Polignac number, because 27552269797 - 2¹¹ = 27552267749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27552269707) 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 17 ways as a sum of consecutive naturals, for example, 11369928 + ... + 11372350.

Almost surely, 2^27552269797 is an apocalyptic number.

It is an amenable number.

27552269797 is a deficient number, since it is larger than the sum of its proper divisors (3776195105).

27552269797 is an frugal number, since it uses more digits than its factorization.

27552269797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4897 (or 2455 counting only the distinct ones).

The product of its digits is 33339600, while the sum is 61.

The spelling of 27552269797 in words is "twenty-seven billion, five hundred fifty-two million, two hundred sixty-nine thousand, seven hundred ninety-seven".