618377274 has 64 divisors (see below), whose sum is σ = 1431936000. Its totient is φ = 197588160.

The previous prime is 618377257. The next prime is 618377297. The reversal of 618377274 is 472773816.

618377274 is a `hidden beast` number, since 6 + 1 + 8 + 377 + 274 = 666.

618377274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180772 + ... + 184160.

It is an arithmetic number, because the mean of its divisors is an integer number (22374000).

Almost surely, 2^618377274 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618377274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (715968000).

618377274 is an abundant number, since it is smaller than the sum of its proper divisors (813558726).

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

618377274 is a wasteful number, since it uses less digits than its factorization.

618377274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540 (or 3534 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 618377274 is about 24867.1927245518. The cubic root of 618377274 is about 851.9573227978.

The spelling of 618377274 in words is "six hundred eighteen million, three hundred seventy-seven thousand, two hundred seventy-four".