542440031520469 has 2 divisors, whose sum is σ = 542440031520470. Its totient is φ = 542440031520468.

The previous prime is 542440031520383. The next prime is 542440031520473. The reversal of 542440031520469 is 964025130044245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 505200379615569 + 37239651904900 = 22476663^2 + 6102430^2 .

It is a cyclic number.

It is not a de Polignac number, because 542440031520469 - 2²³ = 542440023131861 is a prime.

It is a super-2 number, since 2×542440031520469² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542440031523469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271220015760234 + 271220015760235.

It is an arithmetic number, because the mean of its divisors is an integer number (271220015760235).

Almost surely, 2^{542440031520469} is an apocalyptic number.

It is an amenable number.

542440031520469 is a deficient number, since it is larger than the sum of its proper divisors (1).

542440031520469 is an equidigital number, since it uses as much as digits as its factorization.

542440031520469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4147200, while the sum is 49.

The spelling of 542440031520469 in words is "five hundred forty-two trillion, four hundred forty billion, thirty-one million, five hundred twenty thousand, four hundred sixty-nine".