27454623461 has 2 divisors, whose sum is σ = 27454623462. Its totient is φ = 27454623460.

The previous prime is 27454623457. The next prime is 27454623491. The reversal of 27454623461 is 16432645472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25609920961 + 1844702500 = 160031^2 + 42950^2 .

It is a cyclic number.

It is not a de Polignac number, because 27454623461 - 2² = 27454623457 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27454623451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13727311730 + 13727311731.

It is an arithmetic number, because the mean of its divisors is an integer number (13727311731).

Almost surely, 2^27454623461 is an apocalyptic number.

It is an amenable number.

27454623461 is a deficient number, since it is larger than the sum of its proper divisors (1).

27454623461 is an equidigital number, since it uses as much as digits as its factorization.

27454623461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 44.

The spelling of 27454623461 in words is "twenty-seven billion, four hundred fifty-four million, six hundred twenty-three thousand, four hundred sixty-one".