545642025461 has 8 divisors (see below), whose sum is σ = 622180047384. Its totient is φ = 474041940480.

The previous prime is 545642025449. The next prime is 545642025469. The reversal of 545642025461 is 164520246545.

It can be written as a sum of positive squares in 4 ways, for example, as 106165840561 + 439476184900 = 325831^2 + 662930^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 545642025461 - 2²² = 545637831157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545642025469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1234484000 + ... + 1234484441.

It is an arithmetic number, because the mean of its divisors is an integer number (77772505923).

Almost surely, 2^545642025461 is an apocalyptic number.

It is an amenable number.

545642025461 is a deficient number, since it is larger than the sum of its proper divisors (76538021923).

545642025461 is a wasteful number, since it uses less digits than its factorization.

545642025461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468968471.

The product of its (nonzero) digits is 1152000, while the sum is 44.

The spelling of 545642025461 in words is "five hundred forty-five billion, six hundred forty-two million, twenty-five thousand, four hundred sixty-one".