618345812 has 12 divisors (see below), whose sum is σ = 1236691680. Its totient is φ = 265005336.

The previous prime is 618345751. The next prime is 618345817. The reversal of 618345812 is 218543816.

618345812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

618345812 is an admirable number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618345817) 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, 11041862 + ... + 11041917.

It is an arithmetic number, because the mean of its divisors is an integer number (103057640).

Almost surely, 2^618345812 is an apocalyptic number.

It is an amenable number.

618345812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

618345812 is a wasteful number, since it uses less digits than its factorization.

618345812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22083790 (or 22083788 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 618345812 is about 24866.5601159469. The cubic root of 618345812 is about 851.9428738322.

The spelling of 618345812 in words is "six hundred eighteen million, three hundred forty-five thousand, eight hundred twelve".