7648123842 has 30 divisors (see below), whose sum is σ = 17139957219. Its totient is φ = 2549003580.

The previous prime is 7648123831. The next prime is 7648123867. The reversal of 7648123842 is 2483218467.

It is a happy number.

7648123842 is a `hidden beast` number, since 76 + 481 + 23 + 84 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3824061921 + 3824061921 = 61839^2 + 61839^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=61839.

It is an unprimeable number.

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 14 ways as a sum of consecutive naturals, for example, 1109667 + ... + 1116537.

Almost surely, 2^7648123842 is an apocalyptic number.

7648123842 is an abundant number, since it is smaller than the sum of its proper divisors (9491833377).

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

7648123842 is an frugal number, since it uses more digits than its factorization.

7648123842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13756 (or 6876 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 7648123842 is about 87453.5524835898. The cubic root of 7648123842 is about 1970.2362434954.

The spelling of 7648123842 in words is "seven billion, six hundred forty-eight million, one hundred twenty-three thousand, eight hundred forty-two".