671215692795 has 16 divisors (see below), whose sum is σ = 1074241619712. Its totient is φ = 357882865760.

The previous prime is 671215692769. The next prime is 671215692811. The reversal of 671215692795 is 597296512176.

It is a happy number.

It is not a de Polignac number, because 671215692795 - 2¹⁰ = 671215691771 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 6121161 + ... + 6229850.

It is an arithmetic number, because the mean of its divisors is an integer number (67140101232).

Almost surely, 2^671215692795 is an apocalyptic number.

671215692795 is a deficient number, since it is larger than the sum of its proper divisors (403025926917).

671215692795 is a wasteful number, since it uses less digits than its factorization.

671215692795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12354642.

The product of its digits is 14288400, while the sum is 60.

The spelling of 671215692795 in words is "six hundred seventy-one billion, two hundred fifteen million, six hundred ninety-two thousand, seven hundred ninety-five".