7459316521 has 4 divisors (see below), whose sum is σ = 7494668944. Its totient is φ = 7423964100.

The previous prime is 7459316479. The next prime is 7459316531. The reversal of 7459316521 is 1256139547.

7459316521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7459316521 - 2¹⁷ = 7459185449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7459316531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17675895 + ... + 17676316.

It is an arithmetic number, because the mean of its divisors is an integer number (1873667236).

Almost surely, 2^7459316521 is an apocalyptic number.

It is an amenable number.

7459316521 is a deficient number, since it is larger than the sum of its proper divisors (35352423).

7459316521 is a wasteful number, since it uses less digits than its factorization.

7459316521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35352422.

The product of its digits is 226800, while the sum is 43.

The square root of 7459316521 is about 86367.3348031534. The cubic root of 7459316521 is about 1953.8880585386. Note that the first 3 decimals are identical.

The spelling of 7459316521 in words is "seven billion, four hundred fifty-nine million, three hundred sixteen thousand, five hundred twenty-one".