542369951269 has 2 divisors, whose sum is σ = 542369951270. Its totient is φ = 542369951268.

The previous prime is 542369951239. The next prime is 542369951351. The reversal of 542369951269 is 962159963245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 523433439169 + 18936512100 = 723487^2 + 137610^2 .

It is a cyclic number.

It is not a de Polignac number, because 542369951269 - 2⁵ = 542369951237 is a prime.

It is a super-2 number, since 2×542369951269² (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 (542369951239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271184975634 + 271184975635.

It is an arithmetic number, because the mean of its divisors is an integer number (271184975635).

Almost surely, 2^542369951269 is an apocalyptic number.

It is an amenable number.

542369951269 is a deficient number, since it is larger than the sum of its proper divisors (1).

542369951269 is an equidigital number, since it uses as much as digits as its factorization.

542369951269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31492800, while the sum is 61.

The spelling of 542369951269 in words is "five hundred forty-two billion, three hundred sixty-nine million, nine hundred fifty-one thousand, two hundred sixty-nine".