671746534272 has 192 divisors, whose sum is σ = 2232794594160. Its totient is φ = 191585402880.

The previous prime is 671746534267. The next prime is 671746534301. The reversal of 671746534272 is 272435647176.

671746534272 is a `hidden beast` number, since 6 + 7 + 174 + 65 + 342 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1343703 + ... + 1774550.

Almost surely, 2^671746534272 is an apocalyptic number.

It is an amenable number.

671746534272 is an abundant number, since it is smaller than the sum of its proper divisors (1561048059888).

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

671746534272 is a wasteful number, since it uses less digits than its factorization.

671746534272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118301 (or 3118286 counting only the distinct ones).

The product of its digits is 11854080, while the sum is 54.

The spelling of 671746534272 in words is "six hundred seventy-one billion, seven hundred forty-six million, five hundred thirty-four thousand, two hundred seventy-two".