618236673 has 12 divisors (see below), whose sum is σ = 831726480. Its totient is φ = 408485056.

The previous prime is 618236657. The next prime is 618236693. The reversal of 618236673 is 376632816.

It is not a de Polignac number, because 618236673 - 2⁴ = 618236657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (618236623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30238 + ... + 46376.

It is an arithmetic number, because the mean of its divisors is an integer number (69310540).

Almost surely, 2^618236673 is an apocalyptic number.

It is an amenable number.

618236673 is a deficient number, since it is larger than the sum of its proper divisors (213489807).

618236673 is a wasteful number, since it uses less digits than its factorization.

618236673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16368 (or 16255 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 618236673 is about 24864.3655257881. The cubic root of 618236673 is about 851.8927478011.

The spelling of 618236673 in words is "six hundred eighteen million, two hundred thirty-six thousand, six hundred seventy-three".