41694193821 has 8 divisors (see below), whose sum is σ = 63534009664. Its totient is φ = 23825253600.

The previous prime is 41694193813. The next prime is 41694193823. The reversal of 41694193821 is 12839149614.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 41694193821 - 2³ = 41694193813 is a prime.

It is a super-2 number, since 2×41694193821² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41694193823) 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 7 ways as a sum of consecutive naturals, for example, 992718880 + ... + 992718921.

It is an arithmetic number, because the mean of its divisors is an integer number (7941751208).

Almost surely, 2^41694193821 is an apocalyptic number.

It is an amenable number.

41694193821 is a deficient number, since it is larger than the sum of its proper divisors (21839815843).

41694193821 is a wasteful number, since it uses less digits than its factorization.

41694193821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985437811.

The product of its digits is 373248, while the sum is 48.

The spelling of 41694193821 in words is "forty-one billion, six hundred ninety-four million, one hundred ninety-three thousand, eight hundred twenty-one".