4971819849 has 16 divisors (see below), whose sum is σ = 6662123520. Its totient is φ = 3298070160.

The previous prime is 4971819841. The next prime is 4971819869. The reversal of 4971819849 is 9489181794.

It is not a de Polignac number, because 4971819849 - 2³ = 4971819841 is a prime.

It is a super-2 number, since 2×4971819849² = 49437985221820765602, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4971819792 and 4971819801.

It is not an unprimeable number, because it can be changed into a prime (4971819841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561942 + ... + 570720.

It is an arithmetic number, because the mean of its divisors is an integer number (416382720).

Almost surely, 2^4971819849 is an apocalyptic number.

It is an amenable number.

4971819849 is a deficient number, since it is larger than the sum of its proper divisors (1690303671).

4971819849 is a wasteful number, since it uses less digits than its factorization.

4971819849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9700.

The product of its digits is 5225472, while the sum is 60.

The square root of 4971819849 is about 70511.1328018491. The cubic root of 4971819849 is about 1706.7574004487.

The spelling of 4971819849 in words is "four billion, nine hundred seventy-one million, eight hundred nineteen thousand, eight hundred forty-nine".