63855328746 has 32 divisors (see below), whose sum is σ = 140154997248. Its totient is φ = 19234227440.

The previous prime is 63855328741. The next prime is 63855328783. The reversal of 63855328746 is 64782355836.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63855328741) 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, 2885700 + ... + 2907743.

It is an arithmetic number, because the mean of its divisors is an integer number (4379843664).

Almost surely, 2^63855328746 is an apocalyptic number.

63855328746 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

63855328746 is an abundant number, since it is smaller than the sum of its proper divisors (76299668502).

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

63855328746 is a wasteful number, since it uses less digits than its factorization.

63855328746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5793626.

The product of its digits is 29030400, while the sum is 57.

The spelling of 63855328746 in words is "sixty-three billion, eight hundred fifty-five million, three hundred twenty-eight thousand, seven hundred forty-six".