1097716261427 has 2 divisors, whose sum is σ = 1097716261428. Its totient is φ = 1097716261426.

The previous prime is 1097716261409. The next prime is 1097716261429. The reversal of 1097716261427 is 7241626177901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1097716261427 - 2¹⁸ = 1097715999283 is a prime.

Together with 1097716261429, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1097716261429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548858130713 + 548858130714.

It is an arithmetic number, because the mean of its divisors is an integer number (548858130714).

Almost surely, 2^{1097716261427} is an apocalyptic number.

1097716261427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097716261427 is an equidigital number, since it uses as much as digits as its factorization.

1097716261427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1778112, while the sum is 53.

The spelling of 1097716261427 in words is "one trillion, ninety-seven billion, seven hundred sixteen million, two hundred sixty-one thousand, four hundred twenty-seven".