7128371436 has 48 divisors (see below), whose sum is σ = 17524940160. Its totient is φ = 2248922880.

The previous prime is 7128371389. The next prime is 7128371441. The reversal of 7128371436 is 6341738217.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234420 + ... + 263076.

It is an arithmetic number, because the mean of its divisors is an integer number (365102920).

Almost surely, 2^7128371436 is an apocalyptic number.

7128371436 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

7128371436 is an abundant number, since it is smaller than the sum of its proper divisors (10396568724).

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

7128371436 is a wasteful number, since it uses less digits than its factorization.

7128371436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29774 (or 29772 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 7128371436 is about 84429.6833820902. The cubic root of 7128371436 is about 1924.5540259725.

The spelling of 7128371436 in words is "seven billion, one hundred twenty-eight million, three hundred seventy-one thousand, four hundred thirty-six".