542297233909 has 2 divisors, whose sum is σ = 542297233910. Its totient is φ = 542297233908.

The previous prime is 542297233873. The next prime is 542297233921. The reversal of 542297233909 is 909332792245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 498061890225 + 44235343684 = 705735^2 + 210322^2 .

It is a cyclic number.

It is not a de Polignac number, because 542297233909 - 2³³ = 533707299317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542297233909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542297231909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271148616954 + 271148616955.

It is an arithmetic number, because the mean of its divisors is an integer number (271148616955).

Almost surely, 2^542297233909 is an apocalyptic number.

It is an amenable number.

542297233909 is a deficient number, since it is larger than the sum of its proper divisors (1).

542297233909 is an equidigital number, since it uses as much as digits as its factorization.

542297233909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7348320, while the sum is 55.

The spelling of 542297233909 in words is "five hundred forty-two billion, two hundred ninety-seven million, two hundred thirty-three thousand, nine hundred nine".