7081072072 has 32 divisors (see below), whose sum is σ = 13350468600. Its totient is φ = 3520996864.

The previous prime is 7081072027. The next prime is 7081072073. The reversal of 7081072072 is 2702701807.

It can be written as a sum of positive squares in 4 ways, for example, as 4839428356 + 2241643716 = 69566^2 + 47346^2 .

It is not an unprimeable number, because it can be changed into a prime (7081072073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1325118 + ... + 1330450.

Almost surely, 2^7081072072 is an apocalyptic number.

It is an amenable number.

7081072072 is a deficient number, since it is larger than the sum of its proper divisors (6269396528).

7081072072 is a wasteful number, since it uses less digits than its factorization.

7081072072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6225 (or 6221 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 34.

The square root of 7081072072 is about 84149.1061865781. The cubic root of 7081072072 is about 1920.2878684403.

Adding to 7081072072 its reverse (2702701807), we get a palindrome (9783773879).

The spelling of 7081072072 in words is "seven billion, eighty-one million, seventy-two thousand, seventy-two".