4909869451 has 2 divisors, whose sum is σ = 4909869452. Its totient is φ = 4909869450.

The previous prime is 4909869427. The next prime is 4909869509. The reversal of 4909869451 is 1549689094.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4909869451 - 2¹³ = 4909861259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4909869392 and 4909869401.

It is not a weakly prime, because it can be changed into another prime (4909869421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2454934725 + 2454934726.

It is an arithmetic number, because the mean of its divisors is an integer number (2454934726).

Almost surely, 2^4909869451 is an apocalyptic number.

4909869451 is a deficient number, since it is larger than the sum of its proper divisors (1).

4909869451 is an equidigital number, since it uses as much as digits as its factorization.

4909869451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The square root of 4909869451 is about 70070.4606164395. The cubic root of 4909869451 is about 1699.6388449641.

The spelling of 4909869451 in words is "four billion, nine hundred nine million, eight hundred sixty-nine thousand, four hundred fifty-one".