41618619921 has 16 divisors (see below), whose sum is σ = 58780987200. Its totient is φ = 26102404608.

The previous prime is 41618619893. The next prime is 41618619941. The reversal of 41618619921 is 12991681614.

It is not a de Polignac number, because 41618619921 - 2⁷ = 41618619793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (41618619941) 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 15 ways as a sum of consecutive naturals, for example, 55156 + ... + 293733.

It is an arithmetic number, because the mean of its divisors is an integer number (3673811700).

Almost surely, 2^41618619921 is an apocalyptic number.

It is an amenable number.

41618619921 is a deficient number, since it is larger than the sum of its proper divisors (17162367279).

41618619921 is a wasteful number, since it uses less digits than its factorization.

41618619921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351248.

The product of its digits is 186624, while the sum is 48.

The spelling of 41618619921 in words is "forty-one billion, six hundred eighteen million, six hundred nineteen thousand, nine hundred twenty-one".