545645912543 has 2 divisors, whose sum is σ = 545645912544. Its totient is φ = 545645912542.

The previous prime is 545645912503. The next prime is 545645912587. The reversal of 545645912543 is 345219546545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545645912543 - 2¹⁰ = 545645911519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545645912503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272822956271 + 272822956272.

It is an arithmetic number, because the mean of its divisors is an integer number (272822956272).

Almost surely, 2^545645912543 is an apocalyptic number.

545645912543 is a deficient number, since it is larger than the sum of its proper divisors (1).

545645912543 is an equidigital number, since it uses as much as digits as its factorization.

545645912543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960000, while the sum is 53.

The spelling of 545645912543 in words is "five hundred forty-five billion, six hundred forty-five million, nine hundred twelve thousand, five hundred forty-three".