43521513045612 has 48 divisors (see below), whose sum is σ = 118425885849600. Its totient is φ = 12434718011856.

The previous prime is 43521513045583. The next prime is 43521513045653. The reversal of 43521513045612 is 21654031512534.

43521513045612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5286865788 + ... + 5286874019.

It is an arithmetic number, because the mean of its divisors is an integer number (2467205955200).

Almost surely, 2^{43521513045612} is an apocalyptic number.

43521513045612 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

43521513045612 is an abundant number, since it is smaller than the sum of its proper divisors (74904372803988).

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

43521513045612 is a wasteful number, since it uses less digits than its factorization.

43521513045612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10573739835 (or 10573739819 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 43521513045612 in words is "forty-three trillion, five hundred twenty-one billion, five hundred thirteen million, forty-five thousand, six hundred twelve".