618672684 has 48 divisors (see below), whose sum is σ = 1658474496. Its totient is φ = 175833600.

The previous prime is 618672679. The next prime is 618672697. The reversal of 618672684 is 486276816.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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 15 ways as a sum of consecutive naturals, for example, 3237 + ... + 35324.

It is an arithmetic number, because the mean of its divisors is an integer number (34551552).

Almost surely, 2^618672684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618672684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (829237248).

618672684 is an abundant number, since it is smaller than the sum of its proper divisors (1039801812).

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

618672684 is a wasteful number, since it uses less digits than its factorization.

618672684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38766 (or 38764 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 618672684 is about 24873.1317690395. The cubic root of 618672684 is about 852.0929663373.

The spelling of 618672684 in words is "six hundred eighteen million, six hundred seventy-two thousand, six hundred eighty-four".