671776790182641 has 24 divisors (see below), whose sum is σ = 1139984856069696. Its totient is φ = 375819183318240.

The previous prime is 671776790182627. The next prime is 671776790182669. The reversal of 671776790182641 is 146281097677176.

It is not a de Polignac number, because 671776790182641 - 2¹⁸ = 671776789920497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 671776790182641.

It is not an unprimeable number, because it can be changed into a prime (671776790182691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 260985542685 + ... + 260985545258.

It is an arithmetic number, because the mean of its divisors is an integer number (47499369002904).

Almost surely, 2^{671776790182641} is an apocalyptic number.

It is an amenable number.

671776790182641 is a deficient number, since it is larger than the sum of its proper divisors (468208065887055).

671776790182641 is a wasteful number, since it uses less digits than its factorization.

671776790182641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521971087973 (or 521971087970 counting only the distinct ones).

The product of its (nonzero) digits is 298722816, while the sum is 72.

The spelling of 671776790182641 in words is "six hundred seventy-one trillion, seven hundred seventy-six billion, seven hundred ninety million, one hundred eighty-two thousand, six hundred forty-one".