4998707561 has 16 divisors (see below), whose sum is σ = 5266902528. Its totient is φ = 4737532800.

The previous prime is 4998707531. The next prime is 4998707569. The reversal of 4998707561 is 1657078994.

It is a cyclic number.

It is not a de Polignac number, because 4998707561 - 2²² = 4994513257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4998707497 and 4998707506.

It is not an unprimeable number, because it can be changed into a prime (4998707569) 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, 1011266 + ... + 1016196.

It is an arithmetic number, because the mean of its divisors is an integer number (329181408).

Almost surely, 2^4998707561 is an apocalyptic number.

It is an amenable number.

4998707561 is a deficient number, since it is larger than the sum of its proper divisors (268194967).

4998707561 is a wasteful number, since it uses less digits than its factorization.

4998707561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5632.

The product of its (nonzero) digits is 3810240, while the sum is 56.

The square root of 4998707561 is about 70701.5386041916. The cubic root of 4998707561 is about 1709.8285980065.

The spelling of 4998707561 in words is "four billion, nine hundred ninety-eight million, seven hundred seven thousand, five hundred sixty-one".