63441021731 has 8 divisors (see below), whose sum is σ = 67024998720. Its totient is φ = 59950135168.

The previous prime is 63441021691. The next prime is 63441021773. The reversal of 63441021731 is 13712014436.

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

It is a cyclic number.

It is not a de Polignac number, because 63441021731 - 2⁶ = 63441021667 is a prime.

It is a super-2 number, since 2×63441021731² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63441021781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23271206 + ... + 23273931.

It is an arithmetic number, because the mean of its divisors is an integer number (8378124840).

Almost surely, 2^63441021731 is an apocalyptic number.

63441021731 is a deficient number, since it is larger than the sum of its proper divisors (3583976989).

63441021731 is a wasteful number, since it uses less digits than its factorization.

63441021731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46545213.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 63441021731 in words is "sixty-three billion, four hundred forty-one million, twenty-one thousand, seven hundred thirty-one".