5068047781 has 4 divisors (see below), whose sum is σ = 5068322464. Its totient is φ = 5067773100.

The previous prime is 5068047709. The next prime is 5068047797. The reversal of 5068047781 is 1877408605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1877408605 = 5 ⋅375481721.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5068047781 is a prime.

It is a super-3 number, since 3×5068047781³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5068047581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107505 + ... + 147286.

It is an arithmetic number, because the mean of its divisors is an integer number (1267080616).

Almost surely, 2^5068047781 is an apocalyptic number.

It is an amenable number.

5068047781 is a deficient number, since it is larger than the sum of its proper divisors (274683).

5068047781 is a wasteful number, since it uses less digits than its factorization.

5068047781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274682.

The product of its (nonzero) digits is 376320, while the sum is 46.

The square root of 5068047781 is about 71190.2225098363. Note that the first 3 decimals coincide. The cubic root of 5068047781 is about 1717.6983569700.

The spelling of 5068047781 in words is "five billion, sixty-eight million, forty-seven thousand, seven hundred eighty-one".