5308077885821 has 6 divisors (see below), whose sum is σ = 5318285962266. Its totient is φ = 5297889365600.

The previous prime is 5308077885793. The next prime is 5308077885823. The reversal of 5308077885821 is 1285887708035.

It can be written as a sum of positive squares in 3 ways, for example, as 441774244921 + 4866303640900 = 664661^2 + 2205970^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5308077885821 is a prime.

It is a super-2 number, since 2×5308077885821² (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 (5308077885823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9506150 + ... + 10049031.

It is an arithmetic number, because the mean of its divisors is an integer number (886380993711).

Almost surely, 2^{5308077885821} is an apocalyptic number.

It is an amenable number.

5308077885821 is a deficient number, since it is larger than the sum of its proper divisors (10208076445).

5308077885821 is an frugal number, since it uses more digits than its factorization.

5308077885821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19556223 (or 19555702 counting only the distinct ones).

The product of its (nonzero) digits is 30105600, while the sum is 62.

The spelling of 5308077885821 in words is "five trillion, three hundred eight billion, seventy-seven million, eight hundred eighty-five thousand, eight hundred twenty-one".