5621120672 has 12 divisors (see below), whose sum is σ = 11066581386. Its totient is φ = 2810560320.

The previous prime is 5621120657. The next prime is 5621120677. The reversal of 5621120672 is 2760211265.

It can be written as a sum of positive squares in only one way, i.e., 4843603216 + 777517456 = 69596^2 + 27884^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 175660021 = 5621120672 / (5 + 6 + 2 + 1 + 1 + 2 + 0 + 6 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (5621120677) 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 as a sum of consecutive naturals, namely, 87829979 + ... + 87830042.

Almost surely, 2^5621120672 is an apocalyptic number.

It is an amenable number.

5621120672 is a deficient number, since it is larger than the sum of its proper divisors (5445460714).

5621120672 is a wasteful number, since it uses less digits than its factorization.

5621120672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175660031 (or 175660023 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 5621120672 is about 74974.1333527771. The cubic root of 5621120672 is about 1778.0377180508.

The spelling of 5621120672 in words is "five billion, six hundred twenty-one million, one hundred twenty thousand, six hundred seventy-two".