618137009394 has 8 divisors (see below), whose sum is σ = 1236274018800. Its totient is φ = 206045669796.

The previous prime is 618137009353. The next prime is 618137009431. The reversal of 618137009394 is 493900731816.

It is a sphenic number, since it is the product of 3 distinct primes.

618137009394 is an admirable number.

It is a Curzon number.

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, 51511417444 + ... + 51511417455.

It is an arithmetic number, because the mean of its divisors is an integer number (154534252350).

Almost surely, 2^618137009394 is an apocalyptic number.

618137009394 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.

618137009394 is a wasteful number, since it uses less digits than its factorization.

618137009394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103022834904.

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 618137009394 in words is "six hundred eighteen billion, one hundred thirty-seven million, nine thousand, three hundred ninety-four".