43354523648 has 108 divisors (see below), whose sum is σ = 89587957095. Its totient is φ = 20975259648.

The previous prime is 43354523567. The next prime is 43354523711. The reversal of 43354523648 is 84632545334.

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., 21677261824 + 21677261824 = 147232^2 + 147232^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=147232.

It is a super-2 number, since 2×43354523648² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 405182411 + ... + 405182517.

Almost surely, 2^43354523648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43354523648

43354523648 is an abundant number, since it is smaller than the sum of its proper divisors (46233433447).

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

43354523648 is an frugal number, since it uses more digits than its factorization.

43354523648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 152 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 47.

The spelling of 43354523648 in words is "forty-three billion, three hundred fifty-four million, five hundred twenty-three thousand, six hundred forty-eight".