63043743872 has 24 divisors (see below), whose sum is σ = 125600617965. Its totient is φ = 31520451584.

The previous prime is 63043743871. The next prime is 63043743901. The reversal of 63043743872 is 27834734036.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 45444006976 + 17599736896 = 213176^2 + 132664^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=177544.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63043743871) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2829608 + ... + 2851800.

Almost surely, 2^63043743872 is an apocalyptic number.

It is an amenable number.

63043743872 is a deficient number, since it is larger than the sum of its proper divisors (62556874093).

63043743872 is an frugal number, since it uses more digits than its factorization.

63043743872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44400 (or 22195 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 47.

The spelling of 63043743872 in words is "sixty-three billion, forty-three million, seven hundred forty-three thousand, eight hundred seventy-two".