5812909660781 has 2 divisors, whose sum is σ = 5812909660782. Its totient is φ = 5812909660780.

The previous prime is 5812909660751. The next prime is 5812909660801. The reversal of 5812909660781 is 1870669092185.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5301206929225 + 511702731556 = 2302435^2 + 715334^2 .

It is a cyclic number.

It is not a de Polignac number, because 5812909660781 - 2²⁶ = 5812842551917 is a prime.

It is a super-4 number, since 4×5812909660781⁴ (a number of 52 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5812909660711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2906454830390 + 2906454830391.

It is an arithmetic number, because the mean of its divisors is an integer number (2906454830391).

Almost surely, 2^{5812909660781} is an apocalyptic number.

It is an amenable number.

5812909660781 is a deficient number, since it is larger than the sum of its proper divisors (1).

5812909660781 is an equidigital number, since it uses as much as digits as its factorization.

5812909660781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13063680, while the sum is 62.

The spelling of 5812909660781 in words is "five trillion, eight hundred twelve billion, nine hundred nine million, six hundred sixty thousand, seven hundred eighty-one".