63741322821 has 32 divisors (see below), whose sum is σ = 95940518400. Its totient is φ = 37287794880.

The previous prime is 63741322787. The next prime is 63741322823. The reversal of 63741322821 is 12822314736.

It is not a de Polignac number, because 63741322821 - 2¹⁹ = 63740798533 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63741322821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63741322823) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4029690 + ... + 4045476.

It is an arithmetic number, because the mean of its divisors is an integer number (2998141200).

Almost surely, 2^63741322821 is an apocalyptic number.

It is an amenable number.

63741322821 is a deficient number, since it is larger than the sum of its proper divisors (32199195579).

63741322821 is a wasteful number, since it uses less digits than its factorization.

63741322821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20049.

The product of its digits is 96768, while the sum is 39.

The spelling of 63741322821 in words is "sixty-three billion, seven hundred forty-one million, three hundred twenty-two thousand, eight hundred twenty-one".