41579695921 has 3 divisors (see below), whose sum is σ = 41579899833. Its totient is φ = 41579492010.

The previous prime is 41579695891. The next prime is 41579695957. The reversal of 41579695921 is 12959697514.

The square root of 41579695921 is 203911.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12959697514 = 2 ⋅6479848757.

It is not a de Polignac number, because 41579695921 - 2¹¹ = 41579693873 is a prime.

It is a super-2 number, since 2×41579695921² (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 (41579695961) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 101956 + ... + 305866.

It is an arithmetic number, because the mean of its divisors is an integer number (13859966611).

Almost surely, 2^41579695921 is an apocalyptic number.

41579695921 is the 203911-st square number.

41579695921 is the 101956-th centered octagonal number.

It is an amenable number.

41579695921 is a deficient number, since it is larger than the sum of its proper divisors (203912).

41579695921 is an frugal number, since it uses more digits than its factorization.

41579695921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407822 (or 203911 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 58.

The spelling of 41579695921 in words is "forty-one billion, five hundred seventy-nine million, six hundred ninety-five thousand, nine hundred twenty-one".