43257030912 has 144 divisors (see below), whose sum is σ = 128030273280. Its totient is φ = 14406432768.

The previous prime is 43257030881. The next prime is 43257030917. The reversal of 43257030912 is 21903075234.

43257030912 is a `hidden beast` number, since 43 + 2 + 570 + 30 + 9 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (43257030917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11313033 + ... + 11316855.

It is an arithmetic number, because the mean of its divisors is an integer number (889099120).

Almost surely, 2^43257030912 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 43257030912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64015136640).

43257030912 is an abundant number, since it is smaller than the sum of its proper divisors (84773242368).

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

43257030912 is a wasteful number, since it uses less digits than its factorization.

43257030912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5485 (or 5465 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 43257030912 in words is "forty-three billion, two hundred fifty-seven million, thirty thousand, nine hundred twelve".