41806578011 has 4 divisors (see below), whose sum is σ = 45607176024. Its totient is φ = 38005980000.

The previous prime is 41806577929. The next prime is 41806578019. The reversal of 41806578011 is 11087560814.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41806578011 is a prime.

It is a super-2 number, since 2×41806578011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 41806578011.

It is not an unprimeable number, because it can be changed into a prime (41806578019) 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, 1900298990 + ... + 1900299011.

It is an arithmetic number, because the mean of its divisors is an integer number (11401794006).

Almost surely, 2^41806578011 is an apocalyptic number.

41806578011 is a deficient number, since it is larger than the sum of its proper divisors (3800598013).

41806578011 is a wasteful number, since it uses less digits than its factorization.

41806578011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3800598012.

The product of its (nonzero) digits is 53760, while the sum is 41.

The spelling of 41806578011 in words is "forty-one billion, eight hundred six million, five hundred seventy-eight thousand, eleven".