545974626479545 has 4 divisors (see below), whose sum is σ = 655169551775460. Its totient is φ = 436779701183632.

The previous prime is 545974626479501. The next prime is 545974626479551.

545974626479545 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 378431347769344 + 167543278710201 = 19453312^2 + 12943851^2 .

It is a cyclic number.

It is not a de Polignac number, because 545974626479545 - 2⁷ = 545974626479417 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54597462647950 + ... + 54597462647959.

It is an arithmetic number, because the mean of its divisors is an integer number (163792387943865).

Almost surely, 2^{545974626479545} is an apocalyptic number.

It is an amenable number.

545974626479545 is a deficient number, since it is larger than the sum of its proper divisors (109194925295915).

545974626479545 is a wasteful number, since it uses less digits than its factorization.

545974626479545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109194925295914.

The product of its digits is 45722880000, while the sum is 82.

The spelling of 545974626479545 in words is "five hundred forty-five trillion, nine hundred seventy-four billion, six hundred twenty-six million, four hundred seventy-nine thousand, five hundred forty-five".