4645821677623 has 16 divisors (see below), whose sum is σ = 5399795681280. Its totient is φ = 3914851651776.

The previous prime is 4645821677611. The next prime is 4645821677647. The reversal of 4645821677623 is 3267761285464.

It is a cyclic number.

It is not a de Polignac number, because 4645821677623 - 2⁹ = 4645821677111 is a prime.

It is a super-2 number, since 2×4645821677623² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4645821677023) 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, 17899315 + ... + 18157012.

It is an arithmetic number, because the mean of its divisors is an integer number (337487230080).

Almost surely, 2^{4645821677623} is an apocalyptic number.

4645821677623 is a deficient number, since it is larger than the sum of its proper divisors (753974003657).

4645821677623 is a wasteful number, since it uses less digits than its factorization.

4645821677623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36056646.

The product of its digits is 81285120, while the sum is 61.

The spelling of 4645821677623 in words is "four trillion, six hundred forty-five billion, eight hundred twenty-one million, six hundred seventy-seven thousand, six hundred twenty-three".