7172624881 has 2 divisors, whose sum is σ = 7172624882. Its totient is φ = 7172624880.

The previous prime is 7172624873. The next prime is 7172624891. The reversal of 7172624881 is 1884262717.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7105647025 + 66977856 = 84295^2 + 8184^2 .

It is a cyclic number.

It is not a de Polignac number, because 7172624881 - 2³ = 7172624873 is a prime.

It is a super-2 number, since 2×7172624881² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7172624821) 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, 3586312440 + 3586312441.

It is an arithmetic number, because the mean of its divisors is an integer number (3586312441).

Almost surely, 2^7172624881 is an apocalyptic number.

It is an amenable number.

7172624881 is a deficient number, since it is larger than the sum of its proper divisors (1).

7172624881 is an equidigital number, since it uses as much as digits as its factorization.

7172624881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 301056, while the sum is 46.

The square root of 7172624881 is about 84691.3506858876. The cubic root of 7172624881 is about 1928.5284030333.

The spelling of 7172624881 in words is "seven billion, one hundred seventy-two million, six hundred twenty-four thousand, eight hundred eighty-one".