5709820367781 has 24 divisors (see below), whose sum is σ = 8254301481920. Its totient is φ = 3803416948800.

The previous prime is 5709820367767. The next prime is 5709820367803. The reversal of 5709820367781 is 1877630289075.

5709820367781 is a `hidden beast` number, since 570 + 9 + 8 + 20 + 36 + 7 + 7 + 8 + 1 = 666.

It is not a de Polignac number, because 5709820367781 - 2⁷ = 5709820367653 is a prime.

It is a super-2 number, since 2×5709820367781² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5709820368781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111863736 + ... + 111914766.

Almost surely, 2^{5709820367781} is an apocalyptic number.

It is an amenable number.

5709820367781 is a deficient number, since it is larger than the sum of its proper divisors (2544481114139).

5709820367781 is a wasteful number, since it uses less digits than its factorization.

5709820367781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61017 (or 61014 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 63.

The spelling of 5709820367781 in words is "five trillion, seven hundred nine billion, eight hundred twenty million, three hundred sixty-seven thousand, seven hundred eighty-one".