4861129813 has 2 divisors, whose sum is σ = 4861129814. Its totient is φ = 4861129812.

The previous prime is 4861129811. The next prime is 4861129907. The reversal of 4861129813 is 3189211684.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4769697969 + 91431844 = 69063^2 + 9562^2 .

It is a cyclic number.

It is not a de Polignac number, because 4861129813 - 2¹ = 4861129811 is a prime.

Together with 4861129811, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4861129813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4861129811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2430564906 + 2430564907.

It is an arithmetic number, because the mean of its divisors is an integer number (2430564907).

Almost surely, 2^4861129813 is an apocalyptic number.

It is an amenable number.

4861129813 is a deficient number, since it is larger than the sum of its proper divisors (1).

4861129813 is an equidigital number, since it uses as much as digits as its factorization.

4861129813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 43.

The square root of 4861129813 is about 69721.8029959065. The cubic root of 4861129813 is about 1693.9961004256.

The spelling of 4861129813 in words is "four billion, eight hundred sixty-one million, one hundred twenty-nine thousand, eight hundred thirteen".