63925273813 has 8 divisors (see below), whose sum is σ = 67020774336. Its totient is φ = 60856118400.

The previous prime is 63925273807. The next prime is 63925273831. The reversal of 63925273813 is 31837252936.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63925273813 - 2⁵ = 63925273781 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 (63925273873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6581308 + ... + 6591013.

It is an arithmetic number, because the mean of its divisors is an integer number (8377596792).

Almost surely, 2^63925273813 is an apocalyptic number.

It is an amenable number.

63925273813 is a deficient number, since it is larger than the sum of its proper divisors (3095500523).

63925273813 is a wasteful number, since it uses less digits than its factorization.

63925273813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13172555.

The product of its digits is 1632960, while the sum is 49.

The spelling of 63925273813 in words is "sixty-three billion, nine hundred twenty-five million, two hundred seventy-three thousand, eight hundred thirteen".