42875675212309 has 2 divisors, whose sum is σ = 42875675212310. Its totient is φ = 42875675212308.

The previous prime is 42875675212291. The next prime is 42875675212339. The reversal of 42875675212309 is 90321257657824.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42353348123025 + 522327089284 = 6507945^2 + 722722^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42875675212309 is a prime.

It is a super-2 number, since 2×42875675212309² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42875675212339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21437837606154 + 21437837606155.

It is an arithmetic number, because the mean of its divisors is an integer number (21437837606155).

It is a 1-persistent number, because it is pandigital, but 2⋅42875675212309 = 85751350424618 is not.

Almost surely, 2^{42875675212309} is an apocalyptic number.

It is an amenable number.

42875675212309 is a deficient number, since it is larger than the sum of its proper divisors (1).

42875675212309 is an equidigital number, since it uses as much as digits as its factorization.

42875675212309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50803200, while the sum is 61.

The spelling of 42875675212309 in words is "forty-two trillion, eight hundred seventy-five billion, six hundred seventy-five million, two hundred twelve thousand, three hundred nine".