605604999861 has 12 divisors (see below), whose sum is σ = 893374752192. Its totient is φ = 395146524456.

The previous prime is 605604999847. The next prime is 605604999877. The reversal of 605604999861 is 168999406506.

605604999861 is a `hidden beast` number, since 6 + 0 + 5 + 60 + 499 + 9 + 86 + 1 = 666.

605604999861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 605604999861 - 2⁵ = 605604999829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605604999661) 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, 715844731 + ... + 715845576.

It is an arithmetic number, because the mean of its divisors is an integer number (74447896016).

Almost surely, 2^605604999861 is an apocalyptic number.

It is an amenable number.

605604999861 is a deficient number, since it is larger than the sum of its proper divisors (287769752331).

605604999861 is a wasteful number, since it uses less digits than its factorization.

605604999861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431690360 (or 1431690357 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 63.

The spelling of 605604999861 in words is "six hundred five billion, six hundred four million, nine hundred ninety-nine thousand, eight hundred sixty-one".