7409279641 has 8 divisors (see below), whose sum is σ = 7481190600. Its totient is φ = 7337664768.

The previous prime is 7409279623. The next prime is 7409279663. The reversal of 7409279641 is 1469729047.

It can be written as a sum of positive squares in 4 ways, for example, as 150921225 + 7258358416 = 12285^2 + 85196^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7409279641 - 2¹⁹ = 7408755353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7409279671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23566 + ... + 123991.

It is an arithmetic number, because the mean of its divisors is an integer number (935148825).

Almost surely, 2^7409279641 is an apocalyptic number.

It is an amenable number.

7409279641 is a deficient number, since it is larger than the sum of its proper divisors (71910959).

7409279641 is a wasteful number, since it uses less digits than its factorization.

7409279641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148043.

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 7409279641 is about 86077.1725894851. The cubic root of 7409279641 is about 1949.5093783008.

The spelling of 7409279641 in words is "seven billion, four hundred nine million, two hundred seventy-nine thousand, six hundred forty-one".