43045326454421 has 8 divisors (see below), whose sum is σ = 43499490079320. Its totient is φ = 42592447593472.

The previous prime is 43045326454409. The next prime is 43045326454441. The reversal of 43045326454421 is 12445462354034.

It is a happy number.

43045326454421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2614168351921 + 40431158102500 = 1616839^2 + 6358550^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43045326454421 - 2²² = 43045322260117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43045326454441) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 321123626 + ... + 321257643.

It is an arithmetic number, because the mean of its divisors is an integer number (5437436259915).

Almost surely, 2^{43045326454421} is an apocalyptic number.

It is an amenable number.

43045326454421 is a deficient number, since it is larger than the sum of its proper divisors (454163624899).

43045326454421 is a wasteful number, since it uses less digits than its factorization.

43045326454421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642381975.

The product of its (nonzero) digits is 5529600, while the sum is 47.

The spelling of 43045326454421 in words is "forty-three trillion, forty-five billion, three hundred twenty-six million, four hundred fifty-four thousand, four hundred twenty-one".