671893204713 has 32 divisors (see below), whose sum is σ = 1023927609600. Its totient is φ = 389345273856.

The previous prime is 671893204709. The next prime is 671893204733. The reversal of 671893204713 is 317402398176.

It is a happy number.

It is not a de Polignac number, because 671893204713 - 2² = 671893204709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (671893204733) 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, 9841828 + ... + 9909861.

It is an arithmetic number, because the mean of its divisors is an integer number (31997737800).

Almost surely, 2^671893204713 is an apocalyptic number.

It is an amenable number.

671893204713 is a deficient number, since it is larger than the sum of its proper divisors (352034404887).

671893204713 is a wasteful number, since it uses less digits than its factorization.

671893204713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19751761.

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 671893204713 in words is "six hundred seventy-one billion, eight hundred ninety-three million, two hundred four thousand, seven hundred thirteen".