7455521512 has 16 divisors (see below), whose sum is σ = 14114823840. Its totient is φ = 3691568496.

The previous prime is 7455521459. The next prime is 7455521537. The reversal of 7455521512 is 2151255547.

It is a super-2 number, since 2×7455521512² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 4523158 + ... + 4524805.

It is an arithmetic number, because the mean of its divisors is an integer number (882176490).

Almost surely, 2^7455521512 is an apocalyptic number.

It is an amenable number.

7455521512 is a deficient number, since it is larger than the sum of its proper divisors (6659302328).

7455521512 is a wasteful number, since it uses less digits than its factorization.

7455521512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9048072 (or 9048068 counting only the distinct ones).

The product of its digits is 70000, while the sum is 37.

The square root of 7455521512 is about 86345.3618441662. The cubic root of 7455521512 is about 1953.5566483442.

The spelling of 7455521512 in words is "seven billion, four hundred fifty-five million, five hundred twenty-one thousand, five hundred twelve".