63925811712479 has 4 divisors (see below), whose sum is σ = 65285935365984. Its totient is φ = 62565688058976.

The previous prime is 63925811712439. The next prime is 63925811712517. The reversal of 63925811712479 is 97421711852936.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63925811712479 - 2⁸ = 63925811712223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63925811712409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680061826682 + ... + 680061826775.

It is an arithmetic number, because the mean of its divisors is an integer number (16321483841496).

Almost surely, 2^{63925811712479} is an apocalyptic number.

63925811712479 is a deficient number, since it is larger than the sum of its proper divisors (1360123653505).

63925811712479 is a wasteful number, since it uses less digits than its factorization.

63925811712479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360123653504.

The product of its digits is 45722880, while the sum is 65.

The spelling of 63925811712479 in words is "sixty-three trillion, nine hundred twenty-five billion, eight hundred eleven million, seven hundred twelve thousand, four hundred seventy-nine".