4706813781 has 24 divisors (see below), whose sum is σ = 6846648120. Its totient is φ = 3115840896.

The previous prime is 4706813777. The next prime is 4706813789. The reversal of 4706813781 is 1873186074.

It can be written as a sum of positive squares in 4 ways, for example, as 118919025 + 4587894756 = 10905^2 + 67734^2 .

It is not a de Polignac number, because 4706813781 - 2² = 4706813777 is a prime.

It is a super-2 number, since 2×4706813781² = 44308191938023031922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4706813789) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 764391 + ... + 770523.

It is an arithmetic number, because the mean of its divisors is an integer number (285277005).

Almost surely, 2^4706813781 is an apocalyptic number.

It is an amenable number.

4706813781 is a deficient number, since it is larger than the sum of its proper divisors (2139834339).

4706813781 is a wasteful number, since it uses less digits than its factorization.

4706813781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6725 (or 6722 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 4706813781 is about 68606.2226113638. Note that the first 3 decimals coincide. The cubic root of 4706813781 is about 1675.8777644565.

The spelling of 4706813781 in words is "four billion, seven hundred six million, eight hundred thirteen thousand, seven hundred eighty-one".