671326533621724 has 12 divisors (see below), whose sum is σ = 1174842883136664. Its totient is φ = 335657138439824.

The previous prime is 671326533621719. The next prime is 671326533621761. The reversal of 671326533621724 is 427126335623176.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1531846282 + ... + 1532284465.

It is an arithmetic number, because the mean of its divisors is an integer number (97903573594722).

Almost surely, 2^{671326533621724} is an apocalyptic number.

It is an amenable number.

671326533621724 is a deficient number, since it is larger than the sum of its proper divisors (503516349514940).

671326533621724 is a wasteful number, since it uses less digits than its factorization.

671326533621724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064185524 (or 3064185522 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 58.

The spelling of 671326533621724 in words is "six hundred seventy-one trillion, three hundred twenty-six billion, five hundred thirty-three million, six hundred twenty-one thousand, seven hundred twenty-four".