4218523473906 has 72 divisors (see below), whose sum is σ = 10682791997904. Its totient is φ = 1199580081840.

The previous prime is 4218523473887. The next prime is 4218523473911. The reversal of 4218523473906 is 6093743258124.

4218523473906 is a `hidden beast` number, since 4 + 2 + 1 + 85 + 2 + 3 + 473 + 90 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11147800 + ... + 11520003.

It is an arithmetic number, because the mean of its divisors is an integer number (148372111082).

It is a 1-persistent number, because it is pandigital, but 2⋅4218523473906 = 8437046947812 is not.

Almost surely, 2^{4218523473906} is an apocalyptic number.

4218523473906 is an abundant number, since it is smaller than the sum of its proper divisors (6464268523998).

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

4218523473906 is a wasteful number, since it uses less digits than its factorization.

4218523473906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22668036 (or 22668026 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 4218523473906 in words is "four trillion, two hundred eighteen billion, five hundred twenty-three million, four hundred seventy-three thousand, nine hundred six".