4994453923 has 2 divisors, whose sum is σ = 4994453924. Its totient is φ = 4994453922.

The previous prime is 4994453911. The next prime is 4994453941. The reversal of 4994453923 is 3293544994.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4994453923 is a prime.

It is not a weakly prime, because it can be changed into another prime (4994459923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2497226961 + 2497226962.

It is an arithmetic number, because the mean of its divisors is an integer number (2497226962).

Almost surely, 2^4994453923 is an apocalyptic number.

4994453923 is a deficient number, since it is larger than the sum of its proper divisors (1).

4994453923 is an equidigital number, since it uses as much as digits as its factorization.

4994453923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4199040, while the sum is 52.

The square root of 4994453923 is about 70671.4505511242. The cubic root of 4994453923 is about 1709.3434688831.

The spelling of 4994453923 in words is "four billion, nine hundred ninety-four million, four hundred fifty-three thousand, nine hundred twenty-three".