671746036386 has 16 divisors (see below), whose sum is σ = 1358587490400. Its totient is φ = 221399442528.

The previous prime is 671746036343. The next prime is 671746036417. The reversal of 671746036386 is 683630647176.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 628975156 + ... + 628976223.

It is an arithmetic number, because the mean of its divisors is an integer number (84911718150).

Almost surely, 2^671746036386 is an apocalyptic number.

671746036386 is an abundant number, since it is smaller than the sum of its proper divisors (686841454014).

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

671746036386 is a wasteful number, since it uses less digits than its factorization.

671746036386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257951473.

The product of its (nonzero) digits is 18289152, while the sum is 57.

The spelling of 671746036386 in words is "six hundred seventy-one billion, seven hundred forty-six million, thirty-six thousand, three hundred eighty-six".