6461333671 has 4 divisors (see below), whose sum is σ = 6958359352. Its totient is φ = 5964307992.

The previous prime is 6461333653. The next prime is 6461333687. The reversal of 6461333671 is 1763331646.

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

It is a cyclic number.

It is not a de Polignac number, because 6461333671 - 2²⁹ = 5924462759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6461333621) 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, 248512821 + ... + 248512846.

It is an arithmetic number, because the mean of its divisors is an integer number (1739589838).

Almost surely, 2^6461333671 is an apocalyptic number.

6461333671 is a deficient number, since it is larger than the sum of its proper divisors (497025681).

6461333671 is a wasteful number, since it uses less digits than its factorization.

6461333671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497025680.

The product of its digits is 163296, while the sum is 40.

The square root of 6461333671 is about 80382.4214054292. The cubic root of 6461333671 is about 1862.5476391941.

The spelling of 6461333671 in words is "six billion, four hundred sixty-one million, three hundred thirty-three thousand, six hundred seventy-one".