7128713406 has 8 divisors (see below), whose sum is σ = 14257426824. Its totient is φ = 2376237800.

The previous prime is 7128713359. The next prime is 7128713443. The reversal of 7128713406 is 6043178217.

It is a sphenic number, since it is the product of 3 distinct primes.

7128713406 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594059445 + ... + 594059456.

It is an arithmetic number, because the mean of its divisors is an integer number (1782178353).

Almost surely, 2^7128713406 is an apocalyptic number.

7128713406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7128713406 is a wasteful number, since it uses less digits than its factorization.

7128713406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188118906.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 7128713406 is about 84431.7085341757. The cubic root of 7128713406 is about 1924.5848010811.

The spelling of 7128713406 in words is "seven billion, one hundred twenty-eight million, seven hundred thirteen thousand, four hundred six".