27131895029 has 6 divisors (see below), whose sum is σ = 27777545046. Its totient is φ = 26500918920.

The previous prime is 27131894963. The next prime is 27131895067. The reversal of 27131895029 is 92059813172.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22831814404 + 4300080625 = 151102^2 + 65575^2 .

It is not a de Polignac number, because 27131895029 - 2³² = 22836927733 is a prime.

It is a super-2 number, since 2×27131895029² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27131895829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7335062 + ... + 7338759.

It is an arithmetic number, because the mean of its divisors is an integer number (4629590841).

Almost surely, 2^27131895029 is an apocalyptic number.

It is an amenable number.

27131895029 is a deficient number, since it is larger than the sum of its proper divisors (645650017).

27131895029 is an equidigital number, since it uses as much as digits as its factorization.

27131895029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14673907 (or 14673864 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 27131895029 in words is "twenty-seven billion, one hundred thirty-one million, eight hundred ninety-five thousand, twenty-nine".