670538905218 has 96 divisors (see below), whose sum is σ = 1836431041536. Its totient is φ = 172065803904.

The previous prime is 670538905147. The next prime is 670538905219. The reversal of 670538905218 is 812509835076.

670538905218 is a `hidden beast` number, since 6 + 7 + 0 + 538 + 90 + 5 + 2 + 18 = 666.

It is not an unprimeable number, because it can be changed into a prime (670538905219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5471346 + ... + 5592557.

It is an arithmetic number, because the mean of its divisors is an integer number (19129490016).

Almost surely, 2^670538905218 is an apocalyptic number.

670538905218 is an abundant number, since it is smaller than the sum of its proper divisors (1165892136318).

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

670538905218 is a wasteful number, since it uses less digits than its factorization.

670538905218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11063968 (or 11063965 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 670538905218 in words is "six hundred seventy billion, five hundred thirty-eight million, nine hundred five thousand, two hundred eighteen".