27435139369 has 6 divisors (see below), whose sum is σ = 30155979770. Its totient is φ = 24941035680.

The previous prime is 27435139349. The next prime is 27435139379. The reversal of 27435139369 is 96393153472.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23827935769 + 3607203600 = 154363^2 + 60060^2 .

It is not a de Polignac number, because 27435139369 - 2⁵ = 27435139337 is a prime.

It is a super-2 number, since 2×27435139369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27435139339) by changing a digit.

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, 113368224 + ... + 113368465.

Almost surely, 2^27435139369 is an apocalyptic number.

It is an amenable number.

27435139369 is a deficient number, since it is larger than the sum of its proper divisors (2720840401).

27435139369 is a wasteful number, since it uses less digits than its factorization.

27435139369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226736711 (or 226736700 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 52.

The spelling of 27435139369 in words is "twenty-seven billion, four hundred thirty-five million, one hundred thirty-nine thousand, three hundred sixty-nine".