4988621945 has 16 divisors (see below), whose sum is σ = 6077332800. Its totient is φ = 3930673344.

The previous prime is 4988621941. The next prime is 4988621993. The reversal of 4988621945 is 5491268894.

It is a cyclic number.

It is not a de Polignac number, because 4988621945 - 2² = 4988621941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4988621941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65606 + ... + 119504.

It is an arithmetic number, because the mean of its divisors is an integer number (379833300).

Almost surely, 2^4988621945 is an apocalyptic number.

It is an amenable number.

4988621945 is a deficient number, since it is larger than the sum of its proper divisors (1088710855).

4988621945 is a wasteful number, since it uses less digits than its factorization.

4988621945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54184.

The product of its digits is 4976640, while the sum is 56.

The square root of 4988621945 is about 70630.1772969600. The cubic root of 4988621945 is about 1708.6778815231.

The spelling of 4988621945 in words is "four billion, nine hundred eighty-eight million, six hundred twenty-one thousand, nine hundred forty-five".