5105299579081 has 9 divisors (see below), whose sum is σ = 5528255611431. Its totient is φ = 4712557112952.

The previous prime is 5105299579069. The next prime is 5105299579141. The reversal of 5105299579081 is 1809759925015.

The square root of 5105299579081 is 2259491.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 755221831225 + 4350077747856 = 869035^2 + 2085684^2 .

It is not a de Polignac number, because 5105299579081 - 2²¹ = 5105297481929 is a prime.

It is a super-2 number, since 2×5105299579081² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5105299570081) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 29286480 + ... + 29460286.

Almost surely, 2^{5105299579081} is an apocalyptic number.

5105299579081 is the 2259491-st square number.

5105299579081 is the 1129746-th centered octagonal number.

It is an amenable number.

5105299579081 is a deficient number, since it is larger than the sum of its proper divisors (422956032350).

5105299579081 is an frugal number, since it uses more digits than its factorization.

5105299579081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347640 (or 173820 counting only the distinct ones).

The product of its (nonzero) digits is 10206000, while the sum is 61.

The spelling of 5105299579081 in words is "five trillion, one hundred five billion, two hundred ninety-nine million, five hundred seventy-nine thousand, eighty-one".