4998403649 has 2 divisors, whose sum is σ = 4998403650. Its totient is φ = 4998403648.

The previous prime is 4998403633. The next prime is 4998403679. The reversal of 4998403649 is 9463048994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2996467600 + 2001936049 = 54740^2 + 44743^2 .

It is a cyclic number.

It is not a de Polignac number, because 4998403649 - 2⁴ = 4998403633 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4998403594 and 4998403603.

It is not a weakly prime, because it can be changed into another prime (4998403609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2499201824 + 2499201825.

It is an arithmetic number, because the mean of its divisors is an integer number (2499201825).

Almost surely, 2^4998403649 is an apocalyptic number.

It is an amenable number.

4998403649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4998403649 is an equidigital number, since it uses as much as digits as its factorization.

4998403649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6718464, while the sum is 56.

The square root of 4998403649 is about 70699.3893113653. The cubic root of 4998403649 is about 1709.7939458520.

The spelling of 4998403649 in words is "four billion, nine hundred ninety-eight million, four hundred three thousand, six hundred forty-nine".