557244742469 has 2 divisors, whose sum is σ = 557244742470. Its totient is φ = 557244742468.

The previous prime is 557244742403. The next prime is 557244742477. The reversal of 557244742469 is 964247442755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366351772900 + 190892969569 = 605270^2 + 436913^2 .

It is a cyclic number.

It is not a de Polignac number, because 557244742469 - 2²⁴ = 557227965253 is a prime.

It is a super-2 number, since 2×557244742469² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557244742169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278622371234 + 278622371235.

It is an arithmetic number, because the mean of its divisors is an integer number (278622371235).

Almost surely, 2^557244742469 is an apocalyptic number.

It is an amenable number.

557244742469 is a deficient number, since it is larger than the sum of its proper divisors (1).

557244742469 is an equidigital number, since it uses as much as digits as its factorization.

557244742469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67737600, while the sum is 59.

The spelling of 557244742469 in words is "five hundred fifty-seven billion, two hundred forty-four million, seven hundred forty-two thousand, four hundred sixty-nine".