5279760781 has 2 divisors, whose sum is σ = 5279760782. Its totient is φ = 5279760780.

The previous prime is 5279760767. The next prime is 5279760821. The reversal of 5279760781 is 1870679725.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4427704681 + 852056100 = 66541^2 + 29190^2 .

It is a cyclic number.

It is not a de Polignac number, because 5279760781 - 2⁵ = 5279760749 is a prime.

It is a super-3 number, since 3×5279760781³ (a number of 30 digits) contains 333 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 (5279760701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2639880390 + 2639880391.

It is an arithmetic number, because the mean of its divisors is an integer number (2639880391).

Almost surely, 2^5279760781 is an apocalyptic number.

It is an amenable number.

5279760781 is a deficient number, since it is larger than the sum of its proper divisors (1).

5279760781 is an equidigital number, since it uses as much as digits as its factorization.

5279760781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1481760, while the sum is 52.

The square root of 5279760781 is about 72661.9624081266. The cubic root of 5279760781 is about 1741.2912400951.

The spelling of 5279760781 in words is "five billion, two hundred seventy-nine million, seven hundred sixty thousand, seven hundred eighty-one".