2129208795 has 64 divisors (see below), whose sum is σ = 4345344000. Its totient is φ = 969003648.

The previous prime is 2129208791. The next prime is 2129208821. The reversal of 2129208795 is 5978029212.

It is a happy number.

It is not a de Polignac number, because 2129208795 - 2² = 2129208791 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2129208795.

It is not an unprimeable number, because it can be changed into a prime (2129208791) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 211486 + ... + 221324.

It is an arithmetic number, because the mean of its divisors is an integer number (67896000).

Almost surely, 2^2129208795 is an apocalyptic number.

2129208795 is an abundant number, since it is smaller than the sum of its proper divisors (2216135205).

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

2129208795 is a wasteful number, since it uses less digits than its factorization.

2129208795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10089 (or 10083 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 2129208795 is about 46143.3504960357. The cubic root of 2129208795 is about 1286.4890196614.

The spelling of 2129208795 in words is "two billion, one hundred twenty-nine million, two hundred eight thousand, seven hundred ninety-five".