43505451012 has 12 divisors (see below), whose sum is σ = 101512719056. Its totient is φ = 14501817000.

The previous prime is 43505451007. The next prime is 43505451013. The reversal of 43505451012 is 21015450534.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (43505451013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1812727114 + ... + 1812727137.

Almost surely, 2^43505451012 is an apocalyptic number.

It is an amenable number.

43505451012 is an abundant number, since it is smaller than the sum of its proper divisors (58007268044).

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

43505451012 is a wasteful number, since it uses less digits than its factorization.

43505451012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625454258 (or 3625454256 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 43505451012 in words is "forty-three billion, five hundred five million, four hundred fifty-one thousand, twelve".