4351938647 has 8 divisors (see below), whose sum is σ = 5266211616. Its totient is φ = 3510807552.

The previous prime is 4351938607. The next prime is 4351938691. The reversal of 4351938647 is 7468391534.

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

It is not a de Polignac number, because 4351938647 - 2¹² = 4351934551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4351938595 and 4351938604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4351938607) 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, 18285338 + ... + 18285575.

It is an arithmetic number, because the mean of its divisors is an integer number (658276452).

Almost surely, 2^4351938647 is an apocalyptic number.

4351938647 is a deficient number, since it is larger than the sum of its proper divisors (914272969).

4351938647 is a wasteful number, since it uses less digits than its factorization.

4351938647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36570937.

The product of its digits is 2177280, while the sum is 50.

The square root of 4351938647 is about 65969.2249992373. The cubic root of 4351938647 is about 1632.6543684948.

The spelling of 4351938647 in words is "four billion, three hundred fifty-one million, nine hundred thirty-eight thousand, six hundred forty-seven".