41694168981 has 4 divisors (see below), whose sum is σ = 55592225312. Its totient is φ = 27796112652.

The previous prime is 41694168889. The next prime is 41694169037. The reversal of 41694168981 is 18986149614.

It is a happy number.

41694168981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 41694168981 - 2¹³ = 41694160789 is a prime.

It is a super-2 number, since 2×41694168981² (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 (41694163981) 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, 6949028161 + ... + 6949028166.

It is an arithmetic number, because the mean of its divisors is an integer number (13898056328).

Almost surely, 2^41694168981 is an apocalyptic number.

It is an amenable number.

41694168981 is a deficient number, since it is larger than the sum of its proper divisors (13898056331).

41694168981 is a wasteful number, since it uses less digits than its factorization.

41694168981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13898056330.

The product of its digits is 2985984, while the sum is 57.

The spelling of 41694168981 in words is "forty-one billion, six hundred ninety-four million, one hundred sixty-eight thousand, nine hundred eighty-one".