41721018823 has 4 divisors (see below), whose sum is σ = 45513838728. Its totient is φ = 37928198920.

The previous prime is 41721018821. The next prime is 41721018847. The reversal of 41721018823 is 32881012714.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 41721018823 - 2¹ = 41721018821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41721018821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1896409936 + ... + 1896409957.

It is an arithmetic number, because the mean of its divisors is an integer number (11378459682).

Almost surely, 2^41721018823 is an apocalyptic number.

41721018823 is a deficient number, since it is larger than the sum of its proper divisors (3792819905).

41721018823 is a wasteful number, since it uses less digits than its factorization.

41721018823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3792819904.

The product of its (nonzero) digits is 21504, while the sum is 37.

The spelling of 41721018823 in words is "forty-one billion, seven hundred twenty-one million, eighteen thousand, eight hundred twenty-three".