7021320044 has 6 divisors (see below), whose sum is σ = 12287310084. Its totient is φ = 3510660020.

The previous prime is 7021320043. The next prime is 7021320073. The reversal of 7021320044 is 4400231207.

It is not an unprimeable number, because it can be changed into a prime (7021320043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 877665002 + ... + 877665009.

It is an arithmetic number, because the mean of its divisors is an integer number (2047885014).

Almost surely, 2^7021320044 is an apocalyptic number.

It is an amenable number.

7021320044 is a deficient number, since it is larger than the sum of its proper divisors (5265990040).

7021320044 is a wasteful number, since it uses less digits than its factorization.

7021320044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755330015 (or 1755330013 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 7021320044 is about 83793.3174185149. The cubic root of 7021320044 is about 1914.8712990379.

The spelling of 7021320044 in words is "seven billion, twenty-one million, three hundred twenty thousand, forty-four".