43452340315221 has 8 divisors (see below), whose sum is σ = 57936567825504. Its totient is φ = 28968169840880.

The previous prime is 43452340315177. The next prime is 43452340315247. The reversal of 43452340315221 is 12251304325434.

It is a happy number.

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 43452340315221 - 2²⁷ = 43452206097493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43452340315221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43452340315621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12448515 + ... + 15552176.

It is an arithmetic number, because the mean of its divisors is an integer number (7242070978188).

Almost surely, 2^{43452340315221} is an apocalyptic number.

It is an amenable number.

43452340315221 is a deficient number, since it is larger than the sum of its proper divisors (14484227510283).

43452340315221 is a wasteful number, since it uses less digits than its factorization.

43452340315221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28517971.

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 43452340315221 in words is "forty-three trillion, four hundred fifty-two billion, three hundred forty million, three hundred fifteen thousand, two hundred twenty-one".