7998554241 has 24 divisors (see below), whose sum is σ = 12174633120. Its totient is φ = 5046281856.

The previous prime is 7998554237. The next prime is 7998554243. The reversal of 7998554241 is 1424558997.

It is a happy number.

7998554241 is a `hidden beast` number, since 7 + 9 + 98 + 5 + 542 + 4 + 1 = 666.

It is not a de Polignac number, because 7998554241 - 2² = 7998554237 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7998554243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137241 + ... + 186633.

It is an arithmetic number, because the mean of its divisors is an integer number (507276380).

Almost surely, 2^7998554241 is an apocalyptic number.

It is an amenable number.

7998554241 is a deficient number, since it is larger than the sum of its proper divisors (4176078879).

7998554241 is a wasteful number, since it uses less digits than its factorization.

7998554241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50365 (or 50362 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The square root of 7998554241 is about 89434.6366963046. The cubic root of 7998554241 is about 1999.8795128249.

The spelling of 7998554241 in words is "seven billion, nine hundred ninety-eight million, five hundred fifty-four thousand, two hundred forty-one".