18859047606 has 24 divisors (see below), whose sum is σ = 46698594384. Its totient is φ = 5388299280.

The previous prime is 18859047589. The next prime is 18859047659. The reversal of 18859047606 is 60674095881.

18859047606 is a `hidden beast` number, since 1 + 8 + 8 + 590 + 47 + 6 + 0 + 6 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74837365 + ... + 74837616.

It is an arithmetic number, because the mean of its divisors is an integer number (1945774766).

Almost surely, 2^18859047606 is an apocalyptic number.

18859047606 is an abundant number, since it is smaller than the sum of its proper divisors (27839546778).

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

18859047606 is a wasteful number, since it uses less digits than its factorization.

18859047606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149674996 (or 149674993 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

It can be divided in two parts, 188590 and 47606, that added together give a square (236196 = 486²).

The spelling of 18859047606 in words is "eighteen billion, eight hundred fifty-nine million, forty-seven thousand, six hundred six".