605623442864 has 80 divisors (see below), whose sum is σ = 1290185387136. Its totient is φ = 273109977600.

The previous prime is 605623442863. The next prime is 605623442873. The reversal of 605623442864 is 468244326506.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (605623442861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45974999 + ... + 45988169.

Almost surely, 2^605623442864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 605623442864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (645092693568).

605623442864 is an abundant number, since it is smaller than the sum of its proper divisors (684561944272).

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

605623442864 is a wasteful number, since it uses less digits than its factorization.

605623442864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15234 (or 15228 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 50.

The spelling of 605623442864 in words is "six hundred five billion, six hundred twenty-three million, four hundred forty-two thousand, eight hundred sixty-four".