6485311129 has 4 divisors (see below), whose sum is σ = 7074884880. Its totient is φ = 5895737380.

The previous prime is 6485311111. The next prime is 6485311141. The reversal of 6485311129 is 9211135846.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6485311129 - 2²⁵ = 6451756697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6485311091 and 6485311100.

It is not an unprimeable number, because it can be changed into a prime (6485311229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294786859 + ... + 294786880.

It is an arithmetic number, because the mean of its divisors is an integer number (1768721220).

Almost surely, 2^6485311129 is an apocalyptic number.

It is an amenable number.

6485311129 is a deficient number, since it is larger than the sum of its proper divisors (589573751).

6485311129 is a wasteful number, since it uses less digits than its factorization.

6485311129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589573750.

The product of its digits is 51840, while the sum is 40.

The square root of 6485311129 is about 80531.4294483837. The cubic root of 6485311129 is about 1864.8487136348.

The spelling of 6485311129 in words is "six billion, four hundred eighty-five million, three hundred eleven thousand, one hundred twenty-nine".