63800139246 has 16 divisors (see below), whose sum is σ = 128456658000. Its totient is φ = 21123983168.

The previous prime is 63800139209. The next prime is 63800139253. The reversal of 63800139246 is 64293100836.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 63800139198 and 63800139207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35681511 + ... + 35683298.

It is an arithmetic number, because the mean of its divisors is an integer number (8028541125).

Almost surely, 2^63800139246 is an apocalyptic number.

63800139246 is an abundant number, since it is smaller than the sum of its proper divisors (64656518754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63800139246 is a wasteful number, since it uses less digits than its factorization.

63800139246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71364963.

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 63800139246 in words is "sixty-three billion, eight hundred million, one hundred thirty-nine thousand, two hundred forty-six".