41918143721 has 4 divisors (see below), whose sum is σ = 41926554192. Its totient is φ = 41909733252.

The previous prime is 41918143697. The next prime is 41918143723. The reversal of 41918143721 is 12734181914.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 41918143721 - 2¹⁴ = 41918127337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41918143723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4197755 + ... + 4207728.

It is an arithmetic number, because the mean of its divisors is an integer number (10481638548).

Almost surely, 2^41918143721 is an apocalyptic number.

It is an amenable number.

41918143721 is a deficient number, since it is larger than the sum of its proper divisors (8410471).

41918143721 is an equidigital number, since it uses as much as digits as its factorization.

41918143721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8410470.

The product of its digits is 48384, while the sum is 41.

The spelling of 41918143721 in words is "forty-one billion, nine hundred eighteen million, one hundred forty-three thousand, seven hundred twenty-one".