4891863019 has 2 divisors, whose sum is σ = 4891863020. Its totient is φ = 4891863018.

The previous prime is 4891863013. The next prime is 4891863037. The reversal of 4891863019 is 9103681984.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4891863019 - 2¹⁹ = 4891338731 is a prime.

It is a super-2 number, since 2×4891863019² = 47860647593319588722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4891863013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2445931509 + 2445931510.

It is an arithmetic number, because the mean of its divisors is an integer number (2445931510).

Almost surely, 2^4891863019 is an apocalyptic number.

4891863019 is a deficient number, since it is larger than the sum of its proper divisors (1).

4891863019 is an equidigital number, since it uses as much as digits as its factorization.

4891863019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 4891863019 is about 69941.8545579112. The cubic root of 4891863019 is about 1697.5585506471.

The spelling of 4891863019 in words is "four billion, eight hundred ninety-one million, eight hundred sixty-three thousand, nineteen".