64473532232 has 36 divisors (see below), whose sum is σ = 122173843155. Its totient is φ = 31897424176.

The previous prime is 64473532231. The next prime is 64473532241. The reversal of 64473532232 is 23223537446.

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 only one way, i.e., 32236766116 + 32236766116 = 179546^2 + 179546^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=179546.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64473532232.

It is not an unprimeable number, because it can be changed into a prime (64473532231) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 76845269 + ... + 76846107.

Almost surely, 2^64473532232 is an apocalyptic number.

It is an amenable number.

64473532232 is a deficient number, since it is larger than the sum of its proper divisors (57700310923).

64473532232 is an frugal number, since it uses more digits than its factorization.

64473532232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898 (or 948 counting only the distinct ones).

The product of its digits is 725760, while the sum is 41.

The spelling of 64473532232 in words is "sixty-four billion, four hundred seventy-three million, five hundred thirty-two thousand, two hundred thirty-two".