671464575246761 has 8 divisors (see below), whose sum is σ = 672870243080064. Its totient is φ = 670059017621280.

The previous prime is 671464575246719. The next prime is 671464575246821. The reversal of 671464575246761 is 167642575464176.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671464575246761 is a prime.

It is a super-2 number, since 2×671464575246761² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671464575246061) 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, 15348125 + ... + 39730266.

It is an arithmetic number, because the mean of its divisors is an integer number (84108780385008).

Almost surely, 2^{671464575246761} is an apocalyptic number.

It is an amenable number.

671464575246761 is a deficient number, since it is larger than the sum of its proper divisors (1405667833303).

671464575246761 is a wasteful number, since it uses less digits than its factorization.

671464575246761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55103911.

The product of its digits is 1422489600, while the sum is 71.

The spelling of 671464575246761 in words is "six hundred seventy-one trillion, four hundred sixty-four billion, five hundred seventy-five million, two hundred forty-six thousand, seven hundred sixty-one".