7950638345 has 8 divisors (see below), whose sum is σ = 10274671176. Its totient is φ = 5871240576.

The previous prime is 7950638341. The next prime is 7950638419. The reversal of 7950638345 is 5438360597.

It can be written as a sum of positive squares in 4 ways, for example, as 1593287056 + 6357351289 = 39916^2 + 79733^2 .

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 7950638345 - 2² = 7950638341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7950638293 and 7950638302.

It is not an unprimeable number, because it can be changed into a prime (7950638341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61158692 + ... + 61158821.

It is an arithmetic number, because the mean of its divisors is an integer number (1284333897).

Almost surely, 2^7950638345 is an apocalyptic number.

It is an amenable number.

7950638345 is a deficient number, since it is larger than the sum of its proper divisors (2324032831).

7950638345 is a wasteful number, since it uses less digits than its factorization.

7950638345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122317531.

The product of its (nonzero) digits is 2721600, while the sum is 50.

The square root of 7950638345 is about 89166.3520897878. The cubic root of 7950638345 is about 1995.8780393062.

The spelling of 7950638345 in words is "seven billion, nine hundred fifty million, six hundred thirty-eight thousand, three hundred forty-five".