2589778898 has 16 divisors (see below), whose sum is σ = 4440381504. Its totient is φ = 1109715120.

The previous prime is 2589778859. The next prime is 2589778901. The reversal of 2589778898 is 8988779852.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96053 + ... + 120023.

It is an arithmetic number, because the mean of its divisors is an integer number (277523844).

Almost surely, 2^2589778898 is an apocalyptic number.

2589778898 is a deficient number, since it is larger than the sum of its proper divisors (1850602606).

2589778898 is a wasteful number, since it uses less digits than its factorization.

2589778898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31697.

The product of its digits is 162570240, while the sum is 71.

The square root of 2589778898 is about 50889.8702886930. The cubic root of 2589778898 is about 1373.2646136449.

The spelling of 2589778898 in words is "two billion, five hundred eighty-nine million, seven hundred seventy-eight thousand, eight hundred ninety-eight".