618748311834 has 16 divisors (see below), whose sum is σ = 1374996248640. Its totient is φ = 206249437260.

The previous prime is 618748311833. The next prime is 618748311859. The reversal of 618748311834 is 438113847816.

618748311834 is a `hidden beast` number, since 6 + 1 + 87 + 483 + 1 + 1 + 83 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 11458302071 = 618748311834 / (6 + 1 + 8 + 7 + 4 + 8 + 3 + 1 + 1 + 8 + 3 + 4).

It is not an unprimeable number, because it can be changed into a prime (618748311833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5729150982 + ... + 5729151089.

It is an arithmetic number, because the mean of its divisors is an integer number (85937265540).

Almost surely, 2^618748311834 is an apocalyptic number.

618748311834 is an abundant number, since it is smaller than the sum of its proper divisors (756247936806).

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

618748311834 is a wasteful number, since it uses less digits than its factorization.

618748311834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11458302082 (or 11458302076 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The spelling of 618748311834 in words is "six hundred eighteen billion, seven hundred forty-eight million, three hundred eleven thousand, eight hundred thirty-four".