4991153917 has 2 divisors, whose sum is σ = 4991153918. Its totient is φ = 4991153916.

The previous prime is 4991153899. The next prime is 4991153929. The reversal of 4991153917 is 7193511994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2727868441 + 2263285476 = 52229^2 + 47574^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4991153917 is a prime.

It is a pancake number, because a pancake can be divided into 4991153917 parts by 99911 straight cuts.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4991153957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2495576958 + 2495576959.

It is an arithmetic number, because the mean of its divisors is an integer number (2495576959).

Almost surely, 2^4991153917 is an apocalyptic number.

It is an amenable number.

4991153917 is a deficient number, since it is larger than the sum of its proper divisors (1).

4991153917 is an equidigital number, since it uses as much as digits as its factorization.

4991153917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 306180, while the sum is 49.

The square root of 4991153917 is about 70648.0991747124. The cubic root of 4991153917 is about 1708.9669120988.

The spelling of 4991153917 in words is "four billion, nine hundred ninety-one million, one hundred fifty-three thousand, nine hundred seventeen".