5805766144861 has 4 divisors (see below), whose sum is σ = 5805797732800. Its totient is φ = 5805734556924.

The previous prime is 5805766144831. The next prime is 5805766144873. The reversal of 5805766144861 is 1684416675085.

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 a cyclic number.

It is not a de Polignac number, because 5805766144861 - 2¹⁹ = 5805765620573 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 5805766144861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5805766144831) 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, 15516651 + ... + 15886408.

It is an arithmetic number, because the mean of its divisors is an integer number (1451449433200).

Almost surely, 2^{5805766144861} is an apocalyptic number.

It is an amenable number.

5805766144861 is a deficient number, since it is larger than the sum of its proper divisors (31587939).

5805766144861 is a wasteful number, since it uses less digits than its factorization.

5805766144861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31587938.

The product of its (nonzero) digits is 38707200, while the sum is 61.

The spelling of 5805766144861 in words is "five trillion, eight hundred five billion, seven hundred sixty-six million, one hundred forty-four thousand, eight hundred sixty-one".