6438125472 has 48 divisors (see below), whose sum is σ = 16905917952. Its totient is φ = 2145300480.

The previous prime is 6438125413. The next prime is 6438125497. The reversal of 6438125472 is 2745218346.

It is a tau number, because it is divible by the number of its divisors (48).

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, 315648 + ... + 335424.

It is an arithmetic number, because the mean of its divisors is an integer number (352206624).

Almost surely, 2^6438125472 is an apocalyptic number.

It is an amenable number.

6438125472 is an abundant number, since it is smaller than the sum of its proper divisors (10467792480).

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

6438125472 is a wasteful number, since it uses less digits than its factorization.

6438125472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23181 (or 23173 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 6438125472 is about 80237.9303820830. The cubic root of 6438125472 is about 1860.3149611159.

The spelling of 6438125472 in words is "six billion, four hundred thirty-eight million, one hundred twenty-five thousand, four hundred seventy-two".