7491582522056 has 8 divisors (see below), whose sum is σ = 14046717228870. Its totient is φ = 3745791261024.

The previous prime is 7491582522041. The next prime is 7491582522197. The reversal of 7491582522056 is 6502252851947.

It can be written as a sum of positive squares in only one way, i.e., 6929877241156 + 561705280900 = 2632466^2 + 749470^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-4 number, since 4×7491582522056⁴ (a number of 53 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 7491582521992 and 7491582522010.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 468223907621 + ... + 468223907636.

Almost surely, 2^{7491582522056} is an apocalyptic number.

It is an amenable number.

7491582522056 is a deficient number, since it is larger than the sum of its proper divisors (6555134706814).

7491582522056 is a wasteful number, since it uses less digits than its factorization.

7491582522056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936447815263 (or 936447815259 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 56.

The spelling of 7491582522056 in words is "seven trillion, four hundred ninety-one billion, five hundred eighty-two million, five hundred twenty-two thousand, fifty-six".