2129298578 has 16 divisors (see below), whose sum is σ = 3489246720. Its totient is φ = 966490800.

The previous prime is 2129298559. The next prime is 2129298583. The reversal of 2129298578 is 8758929212.

It is a Curzon 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, 52658 + ... + 83853.

It is an arithmetic number, because the mean of its divisors is an integer number (218077920).

Almost surely, 2^2129298578 is an apocalyptic number.

2129298578 is a deficient number, since it is larger than the sum of its proper divisors (1359948142).

2129298578 is a wasteful number, since it uses less digits than its factorization.

2129298578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137233.

The product of its digits is 1451520, while the sum is 53.

The square root of 2129298578 is about 46144.3233561833. The cubic root of 2129298578 is about 1286.5071019996.

The spelling of 2129298578 in words is "two billion, one hundred twenty-nine million, two hundred ninety-eight thousand, five hundred seventy-eight".