671478314421813 has 32 divisors (see below), whose sum is σ = 910684595589120. Its totient is φ = 440027669652480.

The previous prime is 671478314421671. The next prime is 671478314421839. The reversal of 671478314421813 is 318124413874176.

It is not a de Polignac number, because 671478314421813 - 2⁹ = 671478314421301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671478314421113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 740299533 + ... + 741206013.

It is an arithmetic number, because the mean of its divisors is an integer number (28458893612160).

Almost surely, 2^{671478314421813} is an apocalyptic number.

It is an amenable number.

671478314421813 is a deficient number, since it is larger than the sum of its proper divisors (239206281167307).

671478314421813 is a wasteful number, since it uses less digits than its factorization.

671478314421813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924557.

The product of its digits is 21676032, while the sum is 60.

The spelling of 671478314421813 in words is "six hundred seventy-one trillion, four hundred seventy-eight billion, three hundred fourteen million, four hundred twenty-one thousand, eight hundred thirteen".