4691897863 has 2 divisors, whose sum is σ = 4691897864. Its totient is φ = 4691897862.

The previous prime is 4691897851. The next prime is 4691897939. The reversal of 4691897863 is 3687981964.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4691897863 - 2⁵ = 4691897831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4691897263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2345948931 + 2345948932.

It is an arithmetic number, because the mean of its divisors is an integer number (2345948932).

Almost surely, 2^4691897863 is an apocalyptic number.

4691897863 is a deficient number, since it is larger than the sum of its proper divisors (1).

4691897863 is an equidigital number, since it uses as much as digits as its factorization.

4691897863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15676416, while the sum is 61.

The square root of 4691897863 is about 68497.4296087087. The cubic root of 4691897863 is about 1674.1056026118.

The spelling of 4691897863 in words is "four billion, six hundred ninety-one million, eight hundred ninety-seven thousand, eight hundred sixty-three".