4969845621 has 48 divisors (see below), whose sum is σ = 7866173952. Its totient is φ = 3005164800.

The previous prime is 4969845607. The next prime is 4969845641. The reversal of 4969845621 is 1265489694.

4969845621 is a `hidden beast` number, since 4 + 9 + 6 + 9 + 8 + 4 + 5 + 621 = 666.

It is not a de Polignac number, because 4969845621 - 2¹⁰ = 4969844597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4969845641) 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 47 ways as a sum of consecutive naturals, for example, 2655316 + ... + 2657186.

It is an arithmetic number, because the mean of its divisors is an integer number (163878624).

Almost surely, 2^4969845621 is an apocalyptic number.

It is an amenable number.

4969845621 is a deficient number, since it is larger than the sum of its proper divisors (2896328331).

4969845621 is a wasteful number, since it uses less digits than its factorization.

4969845621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274 (or 2271 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 4969845621 is about 70497.1320054937. The cubic root of 4969845621 is about 1706.5314620972.

The spelling of 4969845621 in words is "four billion, nine hundred sixty-nine million, eight hundred forty-five thousand, six hundred twenty-one".