6438147732 has 48 divisors (see below), whose sum is σ = 16974417600. Its totient is φ = 2109673440.

The previous prime is 6438147689. The next prime is 6438147743. The reversal of 6438147732 is 2377418346.

6438147732 is a `hidden beast` number, since 6 + 438 + 147 + 73 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498819 + ... + 511562.

It is an arithmetic number, because the mean of its divisors is an integer number (353633700).

Almost surely, 2^6438147732 is an apocalyptic number.

It is an amenable number.

6438147732 is an abundant number, since it is smaller than the sum of its proper divisors (10536269868).

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

6438147732 is a wasteful number, since it uses less digits than its factorization.

6438147732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010453 (or 1010445 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 6438147732 is about 80238.0690944143. The cubic root of 6438147732 is about 1860.3171051439.

The spelling of 6438147732 in words is "six billion, four hundred thirty-eight million, one hundred forty-seven thousand, seven hundred thirty-two".