4969728809 has 2 divisors, whose sum is σ = 4969728810. Its totient is φ = 4969728808.

The previous prime is 4969728781. The next prime is 4969728871. The reversal of 4969728809 is 9088279694.

It is an a-pointer prime, because the next prime (4969728871) can be obtained adding 4969728809 to its sum of digits (62).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3761123584 + 1208605225 = 61328^2 + 34765^2 .

It is a cyclic number.

It is not a de Polignac number, because 4969728809 - 2²⁴ = 4952951593 is a prime.

It is a super-3 number, since 3×4969728809³ (a number of 30 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (4969728109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2484864404 + 2484864405.

It is an arithmetic number, because the mean of its divisors is an integer number (2484864405).

Almost surely, 2^4969728809 is an apocalyptic number.

It is an amenable number.

4969728809 is a deficient number, since it is larger than the sum of its proper divisors (1).

4969728809 is an equidigital number, since it uses as much as digits as its factorization.

4969728809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15676416, while the sum is 62.

The square root of 4969728809 is about 70496.3035130212. The cubic root of 4969728809 is about 1706.5180918016.

The spelling of 4969728809 in words is "four billion, nine hundred sixty-nine million, seven hundred twenty-eight thousand, eight hundred nine".