7129404085 has 8 divisors (see below), whose sum is σ = 8754245280. Its totient is φ = 5570883024.

The previous prime is 7129403989. The next prime is 7129404091. The reversal of 7129404085 is 5804049217.

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

It is a cyclic number.

It is not a de Polignac number, because 7129404085 - 2¹¹ = 7129402037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16579795 + ... + 16580224.

It is an arithmetic number, because the mean of its divisors is an integer number (1094280660).

Almost surely, 2^7129404085 is an apocalyptic number.

It is an amenable number.

7129404085 is a deficient number, since it is larger than the sum of its proper divisors (1624841195).

7129404085 is a wasteful number, since it uses less digits than its factorization.

7129404085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33160067.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 7129404085 is about 84435.7985986986. The cubic root of 7129404085 is about 1924.6469547640.

The spelling of 7129404085 in words is "seven billion, one hundred twenty-nine million, four hundred four thousand, eighty-five".