63856023838 has 8 divisors (see below), whose sum is σ = 95814156600. Its totient is φ = 31917971640.

The previous prime is 63856023823. The next prime is 63856023863. The reversal of 63856023838 is 83832065836.

It is a happy number.

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

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, 5012188 + ... + 5024911.

It is an arithmetic number, because the mean of its divisors is an integer number (11976769575).

Almost surely, 2^63856023838 is an apocalyptic number.

63856023838 is a deficient number, since it is larger than the sum of its proper divisors (31958132762).

63856023838 is a wasteful number, since it uses less digits than its factorization.

63856023838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10040282.

The product of its (nonzero) digits is 4976640, while the sum is 52.

The spelling of 63856023838 in words is "sixty-three billion, eight hundred fifty-six million, twenty-three thousand, eight hundred thirty-eight".