41689795978 has 8 divisors (see below), whose sum is σ = 62546211972. Its totient is φ = 20841058656.

The previous prime is 41689795943. The next prime is 41689795993. The reversal of 41689795978 is 87959798614.

It can be written as a sum of positive squares in 2 ways, for example, as 41584589929 + 105206049 = 203923^2 + 10257^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 41689795978.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1906075 + ... + 1927822.

Almost surely, 2^41689795978 is an apocalyptic number.

41689795978 is a deficient number, since it is larger than the sum of its proper divisors (20856415994).

41689795978 is a wasteful number, since it uses less digits than its factorization.

41689795978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3839336.

The product of its digits is 274337280, while the sum is 73.

The spelling of 41689795978 in words is "forty-one billion, six hundred eighty-nine million, seven hundred ninety-five thousand, nine hundred seventy-eight".