5623623621 has 36 divisors (see below), whose sum is σ = 10308246624. Its totient is φ = 2921360400.

The previous prime is 5623623617. The next prime is 5623623641. The reversal of 5623623621 is 1263263265.

5623623621 is a `hidden beast` number, since 5 + 6 + 2 + 3 + 6 + 23 + 621 = 666.

It is not a de Polignac number, because 5623623621 - 2² = 5623623617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5623623641) 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 35 ways as a sum of consecutive naturals, for example, 574785 + ... + 584486.

It is an arithmetic number, because the mean of its divisors is an integer number (286340184).

Almost surely, 2^5623623621 is an apocalyptic number.

It is an amenable number.

5623623621 is a deficient number, since it is larger than the sum of its proper divisors (4684623003).

5623623621 is a wasteful number, since it uses less digits than its factorization.

5623623621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159302 (or 1159292 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 5623623621 is about 74990.8235786219. The cubic root of 5623623621 is about 1778.3015846122.

Adding to 5623623621 its reverse (1263263265), we get a palindrome (6886886886).

The spelling of 5623623621 in words is "five billion, six hundred twenty-three million, six hundred twenty-three thousand, six hundred twenty-one".