7241128789 has 4 divisors (see below), whose sum is σ = 7285553056. Its totient is φ = 7196704524.

The previous prime is 7241128751. The next prime is 7241128793. The reversal of 7241128789 is 9878211427.

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 7241128789 - 2⁹ = 7241128277 is a prime.

It is a super-2 number, since 2×7241128789² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7241128729) 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, 22211889 + ... + 22212214.

It is an arithmetic number, because the mean of its divisors is an integer number (1821388264).

Almost surely, 2^7241128789 is an apocalyptic number.

It is an amenable number.

7241128789 is a deficient number, since it is larger than the sum of its proper divisors (44424267).

7241128789 is a wasteful number, since it uses less digits than its factorization.

7241128789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44424266.

The product of its digits is 451584, while the sum is 49.

The square root of 7241128789 is about 85094.8223395525. The cubic root of 7241128789 is about 1934.6485874629.

The spelling of 7241128789 in words is "seven billion, two hundred forty-one million, one hundred twenty-eight thousand, seven hundred eighty-nine".