6464624172 has 12 divisors (see below), whose sum is σ = 15084123096. Its totient is φ = 2154874720.

The previous prime is 6464624161. The next prime is 6464624183. The reversal of 6464624172 is 2714264646.

It is an interprime number because it is at equal distance from previous prime (6464624161) and next prime (6464624183).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269359329 + ... + 269359352.

It is an arithmetic number, because the mean of its divisors is an integer number (1257010258).

Almost surely, 2^6464624172 is an apocalyptic number.

It is an amenable number.

6464624172 is an abundant number, since it is smaller than the sum of its proper divisors (8619498924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6464624172 is a wasteful number, since it uses less digits than its factorization.

6464624172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538718688 (or 538718686 counting only the distinct ones).

The product of its digits is 387072, while the sum is 42.

The square root of 6464624172 is about 80402.8865899726. The cubic root of 6464624172 is about 1862.8637594207.

The spelling of 6464624172 in words is "six billion, four hundred sixty-four million, six hundred twenty-four thousand, one hundred seventy-two".