63808457252 has 12 divisors (see below), whose sum is σ = 111691048560. Its totient is φ = 31896729096.

The previous prime is 63808457243. The next prime is 63808457369. The reversal of 63808457252 is 25275480836.

It is a super-2 number, since 2×63808457252² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63808457252.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1855718 + ... + 1889789.

It is an arithmetic number, because the mean of its divisors is an integer number (9307587380).

Almost surely, 2^63808457252 is an apocalyptic number.

It is an amenable number.

63808457252 is a deficient number, since it is larger than the sum of its proper divisors (47882591308).

63808457252 is a wasteful number, since it uses less digits than its factorization.

63808457252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749770 (or 3749768 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 50.

The spelling of 63808457252 in words is "sixty-three billion, eight hundred eight million, four hundred fifty-seven thousand, two hundred fifty-two".