7121869238 has 16 divisors (see below), whose sum is σ = 11924991936. Its totient is φ = 3161928840.

The previous prime is 7121869219. The next prime is 7121869243. The reversal of 7121869238 is 8329681217.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7121869192 and 7121869201.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3763256 + ... + 3765147.

It is an arithmetic number, because the mean of its divisors is an integer number (745311996).

Almost surely, 2^7121869238 is an apocalyptic number.

7121869238 is a deficient number, since it is larger than the sum of its proper divisors (4803122698).

7121869238 is a wasteful number, since it uses less digits than its factorization.

7121869238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7528459.

The product of its digits is 290304, while the sum is 47.

The square root of 7121869238 is about 84391.1680094546. The cubic root of 7121869238 is about 1923.9686824503.

The spelling of 7121869238 in words is "seven billion, one hundred twenty-one million, eight hundred sixty-nine thousand, two hundred thirty-eight".