2618817434 has 4 divisors (see below), whose sum is σ = 3928226154. Its totient is φ = 1309408716.

The previous prime is 2618817401. The next prime is 2618817437. The reversal of 2618817434 is 4347188162.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4347188162 = 2 ⋅2173594081.

It can be written as a sum of positive squares in only one way, i.e., 2270808409 + 348009025 = 47653^2 + 18655^2 .

It is not an unprimeable number, because it can be changed into a prime (2618817437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654704357 + ... + 654704360.

Almost surely, 2^2618817434 is an apocalyptic number.

2618817434 is a deficient number, since it is larger than the sum of its proper divisors (1309408720).

2618817434 is a wasteful number, since it uses less digits than its factorization.

2618817434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309408719.

The product of its digits is 258048, while the sum is 44.

The square root of 2618817434 is about 51174.3825952009. The cubic root of 2618817434 is about 1378.3782380457.

The spelling of 2618817434 in words is "two billion, six hundred eighteen million, eight hundred seventeen thousand, four hundred thirty-four".