4681056781 has 2 divisors, whose sum is σ = 4681056782. Its totient is φ = 4681056780.

The previous prime is 4681056763. The next prime is 4681056799. The reversal of 4681056781 is 1876501864.

It is a balanced prime because it is at equal distance from previous prime (4681056763) and next prime (4681056799).

It can be written as a sum of positive squares in only one way, i.e., 4604843881 + 76212900 = 67859^2 + 8730^2 .

It is a cyclic number.

It is not a de Polignac number, because 4681056781 - 2⁹ = 4681056269 is a prime.

It is a super-2 number, since 2×4681056781² = 43824585173892163922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4681056701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2340528390 + 2340528391.

It is an arithmetic number, because the mean of its divisors is an integer number (2340528391).

Almost surely, 2^4681056781 is an apocalyptic number.

4681056781 is the 43272-nd centered pentagonal number.

It is an amenable number.

4681056781 is a deficient number, since it is larger than the sum of its proper divisors (1).

4681056781 is an equidigital number, since it uses as much as digits as its factorization.

4681056781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 4681056781 is about 68418.2488887285. The cubic root of 4681056781 is about 1672.8152141561.

The spelling of 4681056781 in words is "four billion, six hundred eighty-one million, fifty-six thousand, seven hundred eighty-one".