9452578009 has 4 divisors (see below), whose sum is σ = 10802946304. Its totient is φ = 8102209716.

The previous prime is 9452577989. The next prime is 9452578013. The reversal of 9452578009 is 9008752549.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9008752549 = 19 ⋅474144871.

It is a cyclic number.

It is not a de Polignac number, because 9452578009 - 2⁵ = 9452577977 is a prime.

It is a super-3 number, since 3×9452578009³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9452578409) 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, 675184137 + ... + 675184150.

It is an arithmetic number, because the mean of its divisors is an integer number (2700736576).

Almost surely, 2^9452578009 is an apocalyptic number.

It is an amenable number.

9452578009 is a deficient number, since it is larger than the sum of its proper divisors (1350368295).

9452578009 is a wasteful number, since it uses less digits than its factorization.

9452578009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350368294.

The product of its (nonzero) digits is 907200, while the sum is 49.

The square root of 9452578009 is about 97224.3694194002. The cubic root of 9452578009 is about 2114.3818561031.

The spelling of 9452578009 in words is "nine billion, four hundred fifty-two million, five hundred seventy-eight thousand, nine".