7531721675 has 12 divisors (see below), whose sum is σ = 9374853840. Its totient is φ = 6002461920.

The previous prime is 7531721663. The next prime is 7531721693. The reversal of 7531721675 is 5761271357.

It is not a de Polignac number, because 7531721675 - 2⁸ = 7531721419 is a prime.

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 in 11 ways as a sum of consecutive naturals, for example, 566180 + ... + 579329.

It is an arithmetic number, because the mean of its divisors is an integer number (781237820).

Almost surely, 2^7531721675 is an apocalyptic number.

7531721675 is a deficient number, since it is larger than the sum of its proper divisors (1843132165).

7531721675 is a wasteful number, since it uses less digits than its factorization.

7531721675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145782 (or 1145777 counting only the distinct ones).

The product of its digits is 308700, while the sum is 44.

The square root of 7531721675 is about 86785.4923071823. The cubic root of 7531721675 is about 1960.1896313644.

The spelling of 7531721675 in words is "seven billion, five hundred thirty-one million, seven hundred twenty-one thousand, six hundred seventy-five".