545243312456 has 32 divisors (see below), whose sum is σ = 1036672534200. Its totient is φ = 268799731200.

The previous prime is 545243312431. The next prime is 545243312461. The reversal of 545243312456 is 654213342545.

It can be written as a sum of positive squares in 4 ways, for example, as 336476564356 + 208766748100 = 580066^2 + 456910^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1665506 + ... + 1965806.

Almost surely, 2^545243312456 is an apocalyptic number.

It is an amenable number.

545243312456 is a deficient number, since it is larger than the sum of its proper divisors (491429221744).

545243312456 is a wasteful number, since it uses less digits than its factorization.

545243312456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303489 (or 303485 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 44.

The spelling of 545243312456 in words is "five hundred forty-five billion, two hundred forty-three million, three hundred twelve thousand, four hundred fifty-six".