4156864913 has 2 divisors, whose sum is σ = 4156864914. Its totient is φ = 4156864912.

The previous prime is 4156864891. The next prime is 4156864931. The reversal of 4156864913 is 3194686514.

Together with next prime (4156864931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3043508224 + 1113356689 = 55168^2 + 33367^2 .

It is a cyclic number.

It is not a de Polignac number, because 4156864913 - 2⁶ = 4156864849 is a prime.

It is not a weakly prime, because it can be changed into another prime (4156864993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2078432456 + 2078432457.

It is an arithmetic number, because the mean of its divisors is an integer number (2078432457).

Almost surely, 2^4156864913 is an apocalyptic number.

It is an amenable number.

4156864913 is a deficient number, since it is larger than the sum of its proper divisors (1).

4156864913 is an equidigital number, since it uses as much as digits as its factorization.

4156864913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 47.

The square root of 4156864913 is about 64473.7536754298. The cubic root of 4156864913 is about 1607.8861850718.

The spelling of 4156864913 in words is "four billion, one hundred fifty-six million, eight hundred sixty-four thousand, nine hundred thirteen".