41981726719 has 4 divisors (see below), whose sum is σ = 43335976000. Its totient is φ = 40627477440.

The previous prime is 41981726711. The next prime is 41981726753. The reversal of 41981726719 is 91762718914.

It is a happy number.

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 41981726719 - 2³ = 41981726711 is a prime.

It is a super-2 number, since 2×41981726719² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 41981726719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41981726711) 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 3 ways as a sum of consecutive naturals, for example, 677124594 + ... + 677124655.

It is an arithmetic number, because the mean of its divisors is an integer number (10833994000).

Almost surely, 2^41981726719 is an apocalyptic number.

41981726719 is a deficient number, since it is larger than the sum of its proper divisors (1354249281).

41981726719 is a wasteful number, since it uses less digits than its factorization.

41981726719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354249280.

The product of its digits is 1524096, while the sum is 55.

The spelling of 41981726719 in words is "forty-one billion, nine hundred eighty-one million, seven hundred twenty-six thousand, seven hundred nineteen".