671709738192 has 40 divisors (see below), whose sum is σ = 1744335260160. Its totient is φ = 222730974720.

The previous prime is 671709738191. The next prime is 671709738209. The reversal of 671709738192 is 291837907176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671709738191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36624217 + ... + 36642552.

It is an arithmetic number, because the mean of its divisors is an integer number (43608381504).

Almost surely, 2^671709738192 is an apocalyptic number.

It is an amenable number.

671709738192 is an abundant number, since it is smaller than the sum of its proper divisors (1072625521968).

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

671709738192 is a wasteful number, since it uses less digits than its factorization.

671709738192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73266971 (or 73266965 counting only the distinct ones).

The product of its (nonzero) digits is 8001504, while the sum is 60.

The spelling of 671709738192 in words is "six hundred seventy-one billion, seven hundred nine million, seven hundred thirty-eight thousand, one hundred ninety-two".