7838065938 has 16 divisors (see below), whose sum is σ = 15677639136. Its totient is φ = 2612437440.

The previous prime is 7838065931. The next prime is 7838065943. The reversal of 7838065938 is 8395608387.

It is a super-3 number, since 3×7838065938³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (7838065931) 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, 11578 + ... + 125738.

It is an arithmetic number, because the mean of its divisors is an integer number (979852446).

Almost surely, 2^7838065938 is an apocalyptic number.

7838065938 is an abundant number, since it is smaller than the sum of its proper divisors (7839573198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7838065938 is a wasteful number, since it uses less digits than its factorization.

7838065938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125609.

The product of its (nonzero) digits is 8709120, while the sum is 57.

The square root of 7838065938 is about 88532.8523091852. The cubic root of 7838065938 is about 1986.4134060680.

The spelling of 7838065938 in words is "seven billion, eight hundred thirty-eight million, sixty-five thousand, nine hundred thirty-eight".