4564715649621 has 32 divisors (see below), whose sum is σ = 6314560502400. Its totient is φ = 2930810305536.

The previous prime is 4564715649523. The next prime is 4564715649629. The reversal of 4564715649621 is 1269465174654.

It is not a de Polignac number, because 4564715649621 - 2¹¹ = 4564715647573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4564715649629) 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 in 31 ways as a sum of consecutive naturals, for example, 4844305 + ... + 5709353.

It is an arithmetic number, because the mean of its divisors is an integer number (197330015700).

Almost surely, 2^{4564715649621} is an apocalyptic number.

It is an amenable number.

4564715649621 is a deficient number, since it is larger than the sum of its proper divisors (1749844852779).

4564715649621 is a wasteful number, since it uses less digits than its factorization.

4564715649621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865573.

The product of its digits is 43545600, while the sum is 60.

The spelling of 4564715649621 in words is "four trillion, five hundred sixty-four billion, seven hundred fifteen million, six hundred forty-nine thousand, six hundred twenty-one".