6458171620 has 24 divisors (see below), whose sum is σ = 13665693888. Its totient is φ = 2563548000.

The previous prime is 6458171579. The next prime is 6458171639. The reversal of 6458171620 is 261718546.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1229856 + ... + 1235095.

It is an arithmetic number, because the mean of its divisors is an integer number (569403912).

Almost surely, 2^6458171620 is an apocalyptic number.

It is an amenable number.

6458171620 is an abundant number, since it is smaller than the sum of its proper divisors (7207522268).

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

6458171620 is a wasteful number, since it uses less digits than its factorization.

6458171620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465091 (or 2465089 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 6458171620 is about 80362.7502018193. The cubic root of 6458171620 is about 1862.2437580906.

The spelling of 6458171620 in words is "six billion, four hundred fifty-eight million, one hundred seventy-one thousand, six hundred twenty".