618675488 has 18 divisors (see below), whose sum is σ = 1218294441. Its totient is φ = 309267392.

The previous prime is 618675479. The next prime is 618675581. The reversal of 618675488 is 884576816.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 618417424 + 258064 = 24868^2 + 508^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=17588.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 138506 + ... + 142902.

Almost surely, 2^618675488 is an apocalyptic number.

It is an amenable number.

618675488 is a deficient number, since it is larger than the sum of its proper divisors (599618953).

618675488 is an frugal number, since it uses more digits than its factorization.

618675488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8804 (or 4399 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 53.

The square root of 618675488 is about 24873.1881350180. The cubic root of 618675488 is about 852.0942536443.

The spelling of 618675488 in words is "six hundred eighteen million, six hundred seventy-five thousand, four hundred eighty-eight".