7838648271 has 12 divisors (see below), whose sum is σ = 11323296400. Its totient is φ = 5225394240.

The previous prime is 7838648261. The next prime is 7838648273. The reversal of 7838648271 is 1728468387.

It is a happy number.

7838648271 is a `hidden beast` number, since 7 + 83 + 86 + 482 + 7 + 1 = 666.

It is not a de Polignac number, because 7838648271 - 2⁷ = 7838648143 is a prime.

It is a super-2 number, since 2×7838648271² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7838648273) 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 11 ways as a sum of consecutive naturals, for example, 174726 + ... + 214956.

Almost surely, 2^7838648271 is an apocalyptic number.

7838648271 is a deficient number, since it is larger than the sum of its proper divisors (3484648129).

7838648271 is a wasteful number, since it uses less digits than its factorization.

7838648271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61886 (or 61883 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 54.

The square root of 7838648271 is about 88536.1410442086. The cubic root of 7838648271 is about 1986.4625987065.

The spelling of 7838648271 in words is "seven billion, eight hundred thirty-eight million, six hundred forty-eight thousand, two hundred seventy-one".