545243312457 has 96 divisors (see below), whose sum is σ = 854800128000. Its totient is φ = 334183449600.

The previous prime is 545243312431. The next prime is 545243312461. The reversal of 545243312457 is 754213342545.

545243312457 is a `hidden beast` number, since 5 + 45 + 2 + 433 + 124 + 57 = 666.

It is not a de Polignac number, because 545243312457 - 2³⁴ = 528063443273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545243312477) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 112861032 + ... + 112865862.

It is an arithmetic number, because the mean of its divisors is an integer number (8904168000).

Almost surely, 2^545243312457 is an apocalyptic number.

It is an amenable number.

545243312457 is a deficient number, since it is larger than the sum of its proper divisors (309556815543).

545243312457 is a wasteful number, since it uses less digits than its factorization.

545243312457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5159 (or 5156 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 45.

The spelling of 545243312457 in words is "five hundred forty-five billion, two hundred forty-three million, three hundred twelve thousand, four hundred fifty-seven".