4691898889 has 2 divisors, whose sum is σ = 4691898890. Its totient is φ = 4691898888.

The previous prime is 4691898859. The next prime is 4691898899. The reversal of 4691898889 is 9888981964.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3683518864 + 1008380025 = 60692^2 + 31755^2 .

It is a cyclic number.

It is not a de Polignac number, because 4691898889 - 2⁹ = 4691898377 is a prime.

It is not a weakly prime, because it can be changed into another prime (4691898839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2345949444 + 2345949445.

It is an arithmetic number, because the mean of its divisors is an integer number (2345949445).

Almost surely, 2^4691898889 is an apocalyptic number.

It is an amenable number.

4691898889 is a deficient number, since it is larger than the sum of its proper divisors (1).

4691898889 is an equidigital number, since it uses as much as digits as its factorization.

4691898889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71663616, while the sum is 70.

The square root of 4691898889 is about 68497.4370980404. The cubic root of 4691898889 is about 1674.1057246401.

The spelling of 4691898889 in words is "four billion, six hundred ninety-one million, eight hundred ninety-eight thousand, eight hundred eighty-nine".