63213155805 has 16 divisors (see below), whose sum is σ = 101252093184. Its totient is φ = 33676668480.

The previous prime is 63213155801. The next prime is 63213155881. The reversal of 63213155805 is 50855131236.

It is not a de Polignac number, because 63213155805 - 2² = 63213155801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63213155801) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2299294 + ... + 2326623.

It is an arithmetic number, because the mean of its divisors is an integer number (6328255824).

Almost surely, 2^63213155805 is an apocalyptic number.

It is an amenable number.

63213155805 is a deficient number, since it is larger than the sum of its proper divisors (38038937379).

63213155805 is a wasteful number, since it uses less digits than its factorization.

63213155805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4626836.

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 63213155805 in words is "sixty-three billion, two hundred thirteen million, one hundred fifty-five thousand, eight hundred five".