618088064 has 32 divisors (see below), whose sum is σ = 1343291040. Its totient is φ = 280948480.

The previous prime is 618088061. The next prime is 618088087. The reversal of 618088064 is 460880816.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (618088061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218084 + ... + 220899.

It is an arithmetic number, because the mean of its divisors is an integer number (41977845).

Almost surely, 2^618088064 is an apocalyptic number.

618088064 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

618088064 is an abundant number, since it is smaller than the sum of its proper divisors (725202976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

618088064 is a wasteful number, since it uses less digits than its factorization.

618088064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439008 (or 438996 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 618088064 is about 24861.3769530169. The cubic root of 618088064 is about 851.8244842596.

The spelling of 618088064 in words is "six hundred eighteen million, eighty-eight thousand, sixty-four".