618304462272 has 168 divisors, whose sum is σ = 2031561364352. Its totient is φ = 176124326400.

The previous prime is 618304462241. The next prime is 618304462273. The reversal of 618304462272 is 272264403816.

It is a happy number.

618304462272 is a `hidden beast` number, since 6 + 18 + 3 + 0 + 4 + 4 + 622 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618304462273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1102947 + ... + 1566237.

Almost surely, 2^618304462272 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 618304462272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1015780682176).

618304462272 is an abundant number, since it is smaller than the sum of its proper divisors (1413256902080).

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

618304462272 is a wasteful number, since it uses less digits than its factorization.

618304462272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463647 (or 463634 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 618304462272 in words is "six hundred eighteen billion, three hundred four million, four hundred sixty-two thousand, two hundred seventy-two".