671674768363 has 4 divisors (see below), whose sum is σ = 672502974808. Its totient is φ = 670846561920.

The previous prime is 671674768357. The next prime is 671674768399. The reversal of 671674768363 is 363867476176.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671674768363 is a prime.

It is a super-2 number, since 2×671674768363² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 671674768295 and 671674768304.

It is not an unprimeable number, because it can be changed into a prime (671674748363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414102006 + ... + 414103627.

It is an arithmetic number, because the mean of its divisors is an integer number (168125743702).

Almost surely, 2^671674768363 is an apocalyptic number.

671674768363 is a deficient number, since it is larger than the sum of its proper divisors (828206445).

671674768363 is an equidigital number, since it uses as much as digits as its factorization.

671674768363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828206444.

The product of its digits is 128024064, while the sum is 64.

The spelling of 671674768363 in words is "six hundred seventy-one billion, six hundred seventy-four million, seven hundred sixty-eight thousand, three hundred sixty-three".