4681123641 has 6 divisors (see below), whose sum is σ = 6761623050. Its totient is φ = 3120749088.

The previous prime is 4681123637. The next prime is 4681123697. The reversal of 4681123641 is 1463211864.

4681123641 is a `hidden beast` number, since 4 + 6 + 8 + 1 + 1 + 2 + 3 + 641 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2430095616 + 2251028025 = 49296^2 + 47445^2 .

It is not a de Polignac number, because 4681123641 - 2² = 4681123637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4681123596 and 4681123605.

It is not an unprimeable number, because it can be changed into a prime (4681123141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 260062416 + ... + 260062433.

It is an arithmetic number, because the mean of its divisors is an integer number (1126937175).

Almost surely, 2^4681123641 is an apocalyptic number.

It is an amenable number.

4681123641 is a deficient number, since it is larger than the sum of its proper divisors (2080499409).

4681123641 is a wasteful number, since it uses less digits than its factorization.

4681123641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520124855 (or 520124852 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 4681123641 is about 68418.7374993137. The cubic root of 4681123641 is about 1672.8231784470.

The spelling of 4681123641 in words is "four billion, six hundred eighty-one million, one hundred twenty-three thousand, six hundred forty-one".