3838948757 has 6 divisors (see below), whose sum is σ = 4465715958. Its totient is φ = 3290527464.

The previous prime is 3838948753. The next prime is 3838948759. The reversal of 3838948757 is 7578498383.

It can be written as a sum of positive squares in only one way, i.e., 3740423281 + 98525476 = 61159^2 + 9926^2 .

It is not a de Polignac number, because 3838948757 - 2² = 3838948753 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3838948757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3838948753) 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 5 ways as a sum of consecutive naturals, for example, 39172898 + ... + 39172995.

It is an arithmetic number, because the mean of its divisors is an integer number (744285993).

Almost surely, 2^3838948757 is an apocalyptic number.

It is an amenable number.

3838948757 is a deficient number, since it is larger than the sum of its proper divisors (626767201).

3838948757 is an equidigital number, since it uses as much as digits as its factorization.

3838948757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78345907 (or 78345900 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 62.

The square root of 3838948757 is about 61959.2507782333. The cubic root of 3838948757 is about 1565.8041449115.

The spelling of 3838948757 in words is "three billion, eight hundred thirty-eight million, nine hundred forty-eight thousand, seven hundred fifty-seven".