7948139126 has 16 divisors (see below), whose sum is σ = 12069997920. Its totient is φ = 3924909120.

The previous prime is 7948139093. The next prime is 7948139131. The reversal of 7948139126 is 6219318497.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132716 + ... + 183056.

It is an arithmetic number, because the mean of its divisors is an integer number (754374870).

Almost surely, 2^7948139126 is an apocalyptic number.

7948139126 is a deficient number, since it is larger than the sum of its proper divisors (4121858794).

7948139126 is a wasteful number, since it uses less digits than its factorization.

7948139126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51319.

The product of its digits is 653184, while the sum is 50.

The square root of 7948139126 is about 89152.3366266976. The cubic root of 7948139126 is about 1995.6688880049.

The spelling of 7948139126 in words is "seven billion, nine hundred forty-eight million, one hundred thirty-nine thousand, one hundred twenty-six".