43745730012 has 54 divisors (see below), whose sum is σ = 117466815648. Its totient is φ = 13724147328.

The previous prime is 43745729897. The next prime is 43745730013. The reversal of 43745730012 is 21003754734.

43745730012 is a `hidden beast` number, since 4 + 3 + 74 + 573 + 0 + 0 + 12 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43745730013) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2091948 + ... + 2112755.

Almost surely, 2^43745730012 is an apocalyptic number.

It is an amenable number.

43745730012 is an abundant number, since it is smaller than the sum of its proper divisors (73721085636).

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

43745730012 is a wasteful number, since it uses less digits than its factorization.

43745730012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4204747 (or 4204725 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The spelling of 43745730012 in words is "forty-three billion, seven hundred forty-five million, seven hundred thirty thousand, twelve".