541891794065 has 8 divisors (see below), whose sum is σ = 650407921128. Its totient is φ = 433421589760.

The previous prime is 541891794047. The next prime is 541891794109. The reversal of 541891794065 is 560497198145.

It can be written as a sum of positive squares in 4 ways, for example, as 108950165776 + 432941628289 = 330076^2 + 657983^2 .

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

It is not a de Polignac number, because 541891794065 - 2¹⁸ = 541891531921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 541891793995 and 541891794013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11454722 + ... + 11501931.

It is an arithmetic number, because the mean of its divisors is an integer number (81300990141).

Almost surely, 2^541891794065 is an apocalyptic number.

It is an amenable number.

541891794065 is a deficient number, since it is larger than the sum of its proper divisors (108516127063).

541891794065 is a wasteful number, since it uses less digits than its factorization.

541891794065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22961379.

The product of its (nonzero) digits is 10886400, while the sum is 59.

The spelling of 541891794065 in words is "five hundred forty-one billion, eight hundred ninety-one million, seven hundred ninety-four thousand, sixty-five".