2117784058 has 8 divisors (see below), whose sum is σ = 3421035828. Its totient is φ = 977438784.

The previous prime is 2117784049. The next prime is 2117784079. The reversal of 2117784058 is 8504877112.

It can be written as a sum of positive squares in 2 ways, for example, as 2079998449 + 37785609 = 45607^2 + 6147^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40726591 + ... + 40726642.

Almost surely, 2^2117784058 is an apocalyptic number.

2117784058 is a deficient number, since it is larger than the sum of its proper divisors (1303251770).

2117784058 is a wasteful number, since it uses less digits than its factorization.

2117784058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81453248.

The product of its (nonzero) digits is 125440, while the sum is 43.

The square root of 2117784058 is about 46019.3878490360. The cubic root of 2117784058 is about 1284.1839121695.

The spelling of 2117784058 in words is "two billion, one hundred seventeen million, seven hundred eighty-four thousand, fifty-eight".