425021212439 has 2 divisors, whose sum is σ = 425021212440. Its totient is φ = 425021212438.

The previous prime is 425021212361. The next prime is 425021212471. The reversal of 425021212439 is 934212120524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425021212439 - 2²⁰ = 425020163863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 425021212399 and 425021212408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425021212939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212510606219 + 212510606220.

It is an arithmetic number, because the mean of its divisors is an integer number (212510606220).

Almost surely, 2^425021212439 is an apocalyptic number.

425021212439 is a deficient number, since it is larger than the sum of its proper divisors (1).

425021212439 is an equidigital number, since it uses as much as digits as its factorization.

425021212439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 425021212439 in words is "four hundred twenty-five billion, twenty-one million, two hundred twelve thousand, four hundred thirty-nine".