1427277592469 has 2 divisors, whose sum is σ = 1427277592470. Its totient is φ = 1427277592468.

The previous prime is 1427277592439. The next prime is 1427277592471. The reversal of 1427277592469 is 9642957727241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1415279019025 + 11998573444 = 1189655^2 + 109538^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1427277592469 is a prime.

It is a super-2 number, since 2×1427277592469² (a number of 25 digits) contains 22 as substring.

Together with 1427277592471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1427277592439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713638796234 + 713638796235.

It is an arithmetic number, because the mean of its divisors is an integer number (713638796235).

Almost surely, 2^{1427277592469} is an apocalyptic number.

It is an amenable number.

1427277592469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427277592469 is an equidigital number, since it uses as much as digits as its factorization.

1427277592469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 106686720, while the sum is 65.

The spelling of 1427277592469 in words is "one trillion, four hundred twenty-seven billion, two hundred seventy-seven million, five hundred ninety-two thousand, four hundred sixty-nine".