5621218744 has 16 divisors (see below), whose sum is σ = 10549137600. Its totient is φ = 2808115392.

The previous prime is 5621218721. The next prime is 5621218751. The reversal of 5621218744 is 4478121265.

It is a junction number, because it is equal to n+sod(n) for n = 5621218697 and 5621218706.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 302152 + ... + 320215.

It is an arithmetic number, because the mean of its divisors is an integer number (659321100).

Almost surely, 2^5621218744 is an apocalyptic number.

It is an amenable number.

5621218744 is a deficient number, since it is larger than the sum of its proper divisors (4927918856).

5621218744 is a wasteful number, since it uses less digits than its factorization.

5621218744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623502 (or 623498 counting only the distinct ones).

The product of its digits is 107520, while the sum is 40.

The square root of 5621218744 is about 74974.7873888283. The cubic root of 5621218744 is about 1778.0480584978.

The spelling of 5621218744 in words is "five billion, six hundred twenty-one million, two hundred eighteen thousand, seven hundred forty-four".