6464603671 has 6 divisors (see below), whose sum is σ = 6471578472. Its totient is φ = 6457634460.

The previous prime is 6464603647. The next prime is 6464603711. The reversal of 6464603671 is 1763064646.

It is not a de Polignac number, because 6464603671 - 2¹¹ = 6464601623 is a prime.

It is a super-2 number, since 2×6464603671² = 83582201246213352482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6464603371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3439510 + ... + 3441388.

It is an arithmetic number, because the mean of its divisors is an integer number (1078596412).

Almost surely, 2^6464603671 is an apocalyptic number.

6464603671 is a deficient number, since it is larger than the sum of its proper divisors (6974801).

6464603671 is an frugal number, since it uses more digits than its factorization.

6464603671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5589 (or 3710 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 43.

The square root of 6464603671 is about 80402.7591006677. The cubic root of 6464603671 is about 1862.8617902106.

The spelling of 6464603671 in words is "six billion, four hundred sixty-four million, six hundred three thousand, six hundred seventy-one".