671368481 has 8 divisors (see below), whose sum is σ = 785992704. Its totient is φ = 561422880.

The previous prime is 671368463. The next prime is 671368507. The reversal of 671368481 is 184863176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 671368481 - 2²² = 667174177 is a prime.

It is a super-2 number, since 2×671368481² = 901471274560494722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (671368081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1169345 + ... + 1169918.

It is an arithmetic number, because the mean of its divisors is an integer number (98249088).

Almost surely, 2^671368481 is an apocalyptic number.

It is an amenable number.

671368481 is a deficient number, since it is larger than the sum of its proper divisors (114624223).

671368481 is a wasteful number, since it uses less digits than its factorization.

671368481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339311.

The product of its digits is 193536, while the sum is 44.

The square root of 671368481 is about 25910.7792433960. The cubic root of 671368481 is about 875.6293620668.

The spelling of 671368481 in words is "six hundred seventy-one million, three hundred sixty-eight thousand, four hundred eighty-one".