4752784781 has 2 divisors, whose sum is σ = 4752784782. Its totient is φ = 4752784780.

The previous prime is 4752784753. The next prime is 4752784783. The reversal of 4752784781 is 1874872574.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4696909156 + 55875625 = 68534^2 + 7475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4752784781 is a prime.

It is a super-2 number, since 2×4752784781² = 45177926349010435922, which contains 22 as substring.

Together with 4752784783, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4752784783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2376392390 + 2376392391.

It is an arithmetic number, because the mean of its divisors is an integer number (2376392391).

Almost surely, 2^4752784781 is an apocalyptic number.

It is an amenable number.

4752784781 is a deficient number, since it is larger than the sum of its proper divisors (1).

4752784781 is an equidigital number, since it uses as much as digits as its factorization.

4752784781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3512320, while the sum is 53.

The square root of 4752784781 is about 68940.4437250008. The cubic root of 4752784781 is about 1681.3161432664.

The spelling of 4752784781 in words is "four billion, seven hundred fifty-two million, seven hundred eighty-four thousand, seven hundred eighty-one".