7129070838 has 12 divisors (see below), whose sum is σ = 15446320188. Its totient is φ = 2376356940.

The previous prime is 7129070833. The next prime is 7129070903. The reversal of 7129070838 is 8380709217.

It is a junction number, because it is equal to n+sod(n) for n = 7129070793 and 7129070802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7129070833) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 198029728 + ... + 198029763.

It is an arithmetic number, because the mean of its divisors is an integer number (1287193349).

Almost surely, 2^7129070838 is an apocalyptic number.

7129070838 is an abundant number, since it is smaller than the sum of its proper divisors (8317249350).

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

7129070838 is a wasteful number, since it uses less digits than its factorization.

7129070838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396059499 (or 396059496 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 7129070838 is about 84433.8252005676. The cubic root of 7129070838 is about 1924.6169666187.

The spelling of 7129070838 in words is "seven billion, one hundred twenty-nine million, seventy thousand, eight hundred thirty-eight".