27305434361725 has 18 divisors (see below), whose sum is σ = 36663604534446. Its totient is φ = 20164013064000.

The previous prime is 27305434361713. The next prime is 27305434361767. The reversal of 27305434361725 is 52716343450372.

It can be written as a sum of positive squares in 9 ways, for example, as 8031947096761 + 19273487264964 = 2834069^2 + 4390158^2 .

It is not a de Polignac number, because 27305434361725 - 2¹¹ = 27305434359677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3231408126 + ... + 3231416575.

Almost surely, 2^{27305434361725} is an apocalyptic number.

27305434361725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27305434361725 is a deficient number, since it is larger than the sum of its proper divisors (9358170172721).

27305434361725 is a wasteful number, since it uses less digits than its factorization.

27305434361725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6462824737 (or 6462824719 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 52.

The spelling of 27305434361725 in words is "twenty-seven trillion, three hundred five billion, four hundred thirty-four million, three hundred sixty-one thousand, seven hundred twenty-five".