6345458172 has 72 divisors (see below), whose sum is σ = 16196740560. Its totient is φ = 2094543360.

The previous prime is 6345458159. The next prime is 6345458179. The reversal of 6345458172 is 2718545436.

6345458172 is a `hidden beast` number, since 6 + 34 + 545 + 8 + 1 + 72 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6345458179) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2795454 + ... + 2797722.

It is an arithmetic number, because the mean of its divisors is an integer number (224954730).

Almost surely, 2^6345458172 is an apocalyptic number.

It is an amenable number.

6345458172 is an abundant number, since it is smaller than the sum of its proper divisors (9851282388).

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

6345458172 is a wasteful number, since it uses less digits than its factorization.

6345458172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003 (or 2998 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 6345458172 is about 79658.3841914961. The cubic root of 6345458172 is about 1851.3462975495.

The spelling of 6345458172 in words is "six billion, three hundred forty-five million, four hundred fifty-eight thousand, one hundred seventy-two".