671276301887 has 8 divisors (see below), whose sum is σ = 700536994656. Its totient is φ = 642021839712.

The previous prime is 671276301881. The next prime is 671276301929. The reversal of 671276301887 is 788103672176.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671276301887 is a prime.

It is a super-2 number, since 2×671276301887² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671276301881) 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, 1336808 + ... + 1769069.

It is an arithmetic number, because the mean of its divisors is an integer number (87567124332).

Almost surely, 2^671276301887 is an apocalyptic number.

671276301887 is a deficient number, since it is larger than the sum of its proper divisors (29260692769).

671276301887 is a wasteful number, since it uses less digits than its factorization.

671276301887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115297.

The product of its (nonzero) digits is 4741632, while the sum is 56.

The spelling of 671276301887 in words is "six hundred seventy-one billion, two hundred seventy-six million, three hundred one thousand, eight hundred eighty-seven".