439242864523 has 2 divisors, whose sum is σ = 439242864524. Its totient is φ = 439242864522.

The previous prime is 439242864509. The next prime is 439242864547. The reversal of 439242864523 is 325468242934.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 439242864523 - 2¹⁷ = 439242733451 is a prime.

It is a super-4 number, since 4×439242864523⁴ (a number of 48 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (439242867523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219621432261 + 219621432262.

It is an arithmetic number, because the mean of its divisors is an integer number (219621432262).

Almost surely, 2^439242864523 is an apocalyptic number.

439242864523 is a deficient number, since it is larger than the sum of its proper divisors (1).

439242864523 is an equidigital number, since it uses as much as digits as its factorization.

439242864523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9953280, while the sum is 52.

The spelling of 439242864523 in words is "four hundred thirty-nine billion, two hundred forty-two million, eight hundred sixty-four thousand, five hundred twenty-three".