7305147842 has 8 divisors (see below), whose sum is σ = 11137356732. Its totient is φ = 3592695600.

The previous prime is 7305147793. The next prime is 7305147847. The reversal of 7305147842 is 2487415037.

7305147842 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7303240681 + 1907161 = 85459^2 + 1381^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 7305147842.

It is not an unprimeable number, because it can be changed into a prime (7305147847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29939009 + ... + 29939252.

Almost surely, 2^7305147842 is an apocalyptic number.

7305147842 is a deficient number, since it is larger than the sum of its proper divisors (3832208890).

7305147842 is a wasteful number, since it uses less digits than its factorization.

7305147842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59878324.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 7305147842 is about 85470.1576107123. The cubic root of 7305147842 is about 1940.3332975020. Note that the first 3 decimals are identical.

The spelling of 7305147842 in words is "seven billion, three hundred five million, one hundred forty-seven thousand, eight hundred forty-two".