8041138561 has 8 divisors (see below), whose sum is σ = 8491579200. Its totient is φ = 7593420240.

The previous prime is 8041138541. The next prime is 8041138607. The reversal of 8041138561 is 1658311408.

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

It is a cyclic number.

It is not a de Polignac number, because 8041138561 - 2⁷ = 8041138433 is a prime.

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 8041138561.

It is not an unprimeable number, because it can be changed into a prime (8041138541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 674506 + ... + 686323.

It is an arithmetic number, because the mean of its divisors is an integer number (1061447400).

Almost surely, 2^8041138561 is an apocalyptic number.

It is an amenable number.

8041138561 is a deficient number, since it is larger than the sum of its proper divisors (450440639).

8041138561 is a wasteful number, since it uses less digits than its factorization.

8041138561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361159.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 8041138561 is about 89672.3957581150. The cubic root of 8041138561 is about 2003.4223538235.

Adding to 8041138561 its reverse (1658311408), we get a palindrome (9699449969).

The spelling of 8041138561 in words is "eight billion, forty-one million, one hundred thirty-eight thousand, five hundred sixty-one".