7421117530 has 8 divisors (see below), whose sum is σ = 13358011572. Its totient is φ = 2968447008.

The previous prime is 7421117519. The next prime is 7421117537. The reversal of 7421117530 is 357111247.

It can be written as a sum of positive squares in 2 ways, for example, as 7025624761 + 395492769 = 83819^2 + 19887^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 7421117492 and 7421117501.

It is not an unprimeable number, because it can be changed into a prime (7421117537) 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, 371055867 + ... + 371055886.

Almost surely, 2^7421117530 is an apocalyptic number.

7421117530 is a deficient number, since it is larger than the sum of its proper divisors (5936894042).

7421117530 is a wasteful number, since it uses less digits than its factorization.

7421117530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742111760.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 7421117530 is about 86145.9083764284. The cubic root of 7421117530 is about 1950.5470768329.

Adding to 7421117530 its reverse (357111247), we get a palindrome (7778228777).

The spelling of 7421117530 in words is "seven billion, four hundred twenty-one million, one hundred seventeen thousand, five hundred thirty".