63925811712439 has 2 divisors, whose sum is σ = 63925811712440. Its totient is φ = 63925811712438.

The previous prime is 63925811712421. The next prime is 63925811712517. The reversal of 63925811712439 is 93421711852936.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63925811712439 - 2³¹ = 63923664228791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63925811712409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31962905856219 + 31962905856220.

It is an arithmetic number, because the mean of its divisors is an integer number (31962905856220).

Almost surely, 2^{63925811712439} is an apocalyptic number.

63925811712439 is a deficient number, since it is larger than the sum of its proper divisors (1).

63925811712439 is an equidigital number, since it uses as much as digits as its factorization.

63925811712439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19595520, while the sum is 61.

The spelling of 63925811712439 in words is "sixty-three trillion, nine hundred twenty-five billion, eight hundred eleven million, seven hundred twelve thousand, four hundred thirty-nine".