63351868 has 12 divisors (see below), whose sum is σ = 111847680. Its totient is φ = 31395392.

The previous prime is 63351853. The next prime is 63351887. The reversal of 63351868 is 86815336.

It is a self number, because there is not a number n which added to its sum of digits gives 63351868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69628 + ... + 70531.

It is an arithmetic number, because the mean of its divisors is an integer number (9320640).

Almost surely, 2^63351868 is an apocalyptic number.

It is an amenable number.

63351868 is a deficient number, since it is larger than the sum of its proper divisors (48495812).

63351868 is a wasteful number, since it uses less digits than its factorization.

63351868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140276 (or 140274 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 63351868 is about 7959.3886699922. The cubic root of 63351868 is about 398.6451410746.

The spelling of 63351868 in words is "sixty-three million, three hundred fifty-one thousand, eight hundred sixty-eight".