27348546457 has 4 divisors (see below), whose sum is σ = 27441886500. Its totient is φ = 27255206416.

The previous prime is 27348546431. The next prime is 27348546481. The reversal of 27348546457 is 75464584372.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21846022416 + 5502524041 = 147804^2 + 74179^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27348546457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27348546398 and 27348546407.

It is not an unprimeable number, because it can be changed into a prime (27348546427) 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 3 ways as a sum of consecutive naturals, for example, 46669582 + ... + 46670167.

It is an arithmetic number, because the mean of its divisors is an integer number (6860471625).

Almost surely, 2^27348546457 is an apocalyptic number.

It is an amenable number.

27348546457 is a deficient number, since it is larger than the sum of its proper divisors (93340043).

27348546457 is an equidigital number, since it uses as much as digits as its factorization.

27348546457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93340042.

The product of its digits is 22579200, while the sum is 55.

It can be divided in two parts, 2734854 and 6457, that added together give a triangular number (2741311 = T₂₃₄₁).

The spelling of 27348546457 in words is "twenty-seven billion, three hundred forty-eight million, five hundred forty-six thousand, four hundred fifty-seven".