2188118458 has 16 divisors (see below), whose sum is σ = 3325512960. Its totient is φ = 1079629200.

The previous prime is 2188118437. The next prime is 2188118473. The reversal of 2188118458 is 8548118812.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557523 + ... + 561433.

It is an arithmetic number, because the mean of its divisors is an integer number (207844560).

Almost surely, 2^2188118458 is an apocalyptic number.

2188118458 is a deficient number, since it is larger than the sum of its proper divisors (1137394502).

2188118458 is a wasteful number, since it uses less digits than its factorization.

2188118458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7533.

The product of its digits is 163840, while the sum is 46.

The square root of 2188118458 is about 46777.3284615528. The cubic root of 2188118458 is about 1298.2458506789.

The spelling of 2188118458 in words is "two billion, one hundred eighty-eight million, one hundred eighteen thousand, four hundred fifty-eight".