3540205145329 has 4 divisors (see below), whose sum is σ = 3553980262884. Its totient is φ = 3526430027776.

The previous prime is 3540205145233. The next prime is 3540205145377. The reversal of 3540205145329 is 9235415020453.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2955786177600 + 584418967729 = 1719240^2 + 764473^2 .

It is a cyclic number.

It is not a de Polignac number, because 3540205145329 - 2⁷ = 3540205145201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3540205148329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6887558392 + ... + 6887558905.

It is an arithmetic number, because the mean of its divisors is an integer number (888495065721).

Almost surely, 2^{3540205145329} is an apocalyptic number.

It is an amenable number.

3540205145329 is a deficient number, since it is larger than the sum of its proper divisors (13775117555).

3540205145329 is a wasteful number, since it uses less digits than its factorization.

3540205145329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13775117554.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 3540205145329 in words is "three trillion, five hundred forty billion, two hundred five million, one hundred forty-five thousand, three hundred twenty-nine".