2105411578 has 16 divisors (see below), whose sum is σ = 3244772160. Its totient is φ = 1024189056.

The previous prime is 2105411507. The next prime is 2105411579. The reversal of 2105411578 is 8751145012.

It is not an unprimeable number, because it can be changed into a prime (2105411579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80526 + ... + 103417.

It is an arithmetic number, because the mean of its divisors is an integer number (202798260).

Almost surely, 2^2105411578 is an apocalyptic number.

2105411578 is a deficient number, since it is larger than the sum of its proper divisors (1139360582).

2105411578 is a wasteful number, since it uses less digits than its factorization.

2105411578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184101.

The product of its (nonzero) digits is 11200, while the sum is 34.

The square root of 2105411578 is about 45884.7641162075. The cubic root of 2105411578 is about 1281.6782141697.

The spelling of 2105411578 in words is "two billion, one hundred five million, four hundred eleven thousand, five hundred seventy-eight".