4947668149 has 2 divisors, whose sum is σ = 4947668150. Its totient is φ = 4947668148.

The previous prime is 4947668081. The next prime is 4947668177. The reversal of 4947668149 is 9418667494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4804985124 + 142683025 = 69318^2 + 11945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4947668149 is a prime.

It is a super-2 number, since 2×4947668149² = 48958840225258172402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4947668093 and 4947668102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4947668189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2473834074 + 2473834075.

It is an arithmetic number, because the mean of its divisors is an integer number (2473834075).

Almost surely, 2^4947668149 is an apocalyptic number.

It is an amenable number.

4947668149 is a deficient number, since it is larger than the sum of its proper divisors (1).

4947668149 is an equidigital number, since it uses as much as digits as its factorization.

4947668149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10450944, while the sum is 58.

The square root of 4947668149 is about 70339.6627017787. The cubic root of 4947668149 is about 1703.9892644678.

The spelling of 4947668149 in words is "four billion, nine hundred forty-seven million, six hundred sixty-eight thousand, one hundred forty-nine".