3545405728243 has 32 divisors (see below), whose sum is σ = 3812194590336. Its totient is φ = 3288626085888.

The previous prime is 3545405728223. The next prime is 3545405728247. The reversal of 3545405728243 is 3428275045453.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3545405728243 - 2⁴¹ = 1346382472691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3545405728247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 710072755 + ... + 710077747.

It is an arithmetic number, because the mean of its divisors is an integer number (119131080948).

Almost surely, 2^{3545405728243} is an apocalyptic number.

3545405728243 is a deficient number, since it is larger than the sum of its proper divisors (266788862093).

3545405728243 is a wasteful number, since it uses less digits than its factorization.

3545405728243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7663.

The product of its (nonzero) digits is 16128000, while the sum is 52.

The spelling of 3545405728243 in words is "three trillion, five hundred forty-five billion, four hundred five million, seven hundred twenty-eight thousand, two hundred forty-three".