7254421009 has 4 divisors (see below), whose sum is σ = 7913913840. Its totient is φ = 6594928180.

The previous prime is 7254420997. The next prime is 7254421019. The reversal of 7254421009 is 9001244527.

7254421009 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 7254421009 - 2⁷ = 7254420881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7254421019) 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, 329746399 + ... + 329746420.

It is an arithmetic number, because the mean of its divisors is an integer number (1978478460).

Almost surely, 2^7254421009 is an apocalyptic number.

It is an amenable number.

7254421009 is a deficient number, since it is larger than the sum of its proper divisors (659492831).

7254421009 is a wasteful number, since it uses less digits than its factorization.

7254421009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659492830.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 7254421009 is about 85172.8889318661. Note that the first 3 decimals coincide. The cubic root of 7254421009 is about 1935.8316468228.

The spelling of 7254421009 in words is "seven billion, two hundred fifty-four million, four hundred twenty-one thousand, nine".