2117973590 has 16 divisors (see below), whose sum is σ = 3812916672. Its totient is φ = 847064064.

The previous prime is 2117973581. The next prime is 2117973623. The reversal of 2117973590 is 953797112.

It is a Curzon number.

It is a congruent 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, 87827 + ... + 109313.

It is an arithmetic number, because the mean of its divisors is an integer number (238307292).

Almost surely, 2^2117973590 is an apocalyptic number.

2117973590 is a deficient number, since it is larger than the sum of its proper divisors (1694943082).

2117973590 is a wasteful number, since it uses less digits than its factorization.

2117973590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31351.

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 2117973590 is about 46021.4470654716. The cubic root of 2117973590 is about 1284.2222205582. Note that the first 5 decimals are identical.

The spelling of 2117973590 in words is "two billion, one hundred seventeen million, nine hundred seventy-three thousand, five hundred ninety".