618366380 has 12 divisors (see below), whose sum is σ = 1298569440. Its totient is φ = 247346544.

The previous prime is 618366337. The next prime is 618366407. The reversal of 618366380 is 83663816.

618366380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15459140 + ... + 15459179.

It is an arithmetic number, because the mean of its divisors is an integer number (108214120).

Almost surely, 2^618366380 is an apocalyptic number.

It is an amenable number.

618366380 is an abundant number, since it is smaller than the sum of its proper divisors (680203060).

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

618366380 is a wasteful number, since it uses less digits than its factorization.

618366380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30918328 (or 30918326 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 618366380 is about 24866.9736799636. The cubic root of 618366380 is about 851.9523197692.

The spelling of 618366380 in words is "six hundred eighteen million, three hundred sixty-six thousand, three hundred eighty".