618820557444773 has 8 divisors (see below), whose sum is σ = 620331561009600. Its totient is φ = 617311146928320.

The previous prime is 618820557444763. The next prime is 618820557444787. The reversal of 618820557444773 is 377444755028816.

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

It is a cyclic number.

It is not a de Polignac number, because 618820557444773 - 2⁶ = 618820557444709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 618820557444697 and 618820557444706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618820557444763) 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, 397484243 + ... + 399038048.

It is an arithmetic number, because the mean of its divisors is an integer number (77541445126200).

Almost surely, 2^{618820557444773} is an apocalyptic number.

It is an amenable number.

618820557444773 is a deficient number, since it is larger than the sum of its proper divisors (1511003564827).

618820557444773 is a wasteful number, since it uses less digits than its factorization.

618820557444773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796524187.

The product of its (nonzero) digits is 1264435200, while the sum is 71.

The spelling of 618820557444773 in words is "six hundred eighteen trillion, eight hundred twenty billion, five hundred fifty-seven million, four hundred forty-four thousand, seven hundred seventy-three".