7944224497 has 16 divisors (see below), whose sum is σ = 8712285120. Its totient is φ = 7183915200.

The previous prime is 7944224471. The next prime is 7944224513.

7944224497 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7944224497 - 2⁷ = 7944224369 is a prime.

It is a super-2 number, since 2×7944224497² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7944224447) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1716847 + ... + 1721467.

It is an arithmetic number, because the mean of its divisors is an integer number (544517820).

Almost surely, 2^7944224497 is an apocalyptic number.

It is an amenable number.

7944224497 is a deficient number, since it is larger than the sum of its proper divisors (768060623).

7944224497 is a wasteful number, since it uses less digits than its factorization.

7944224497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5424.

The product of its digits is 4064256, while the sum is 52.

The square root of 7944224497 is about 89130.3792037260. The cubic root of 7944224497 is about 1995.3411976233.

The spelling of 7944224497 in words is "seven billion, nine hundred forty-four million, two hundred twenty-four thousand, four hundred ninety-seven".