648854524345 has 4 divisors (see below), whose sum is σ = 778625429220. Its totient is φ = 519083619472.

The previous prime is 648854524277. The next prime is 648854524391. The reversal of 648854524345 is 543425458846.

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 184380924816 + 464473599529 = 429396^2 + 681523^2 .

It is a cyclic number.

It is not a de Polignac number, because 648854524345 - 2³³ = 640264589753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 648854524345.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64885452430 + ... + 64885452439.

It is an arithmetic number, because the mean of its divisors is an integer number (194656357305).

Almost surely, 2^648854524345 is an apocalyptic number.

It is an amenable number.

648854524345 is a deficient number, since it is larger than the sum of its proper divisors (129770904875).

648854524345 is a wasteful number, since it uses less digits than its factorization.

648854524345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129770904874.

The product of its digits is 73728000, while the sum is 58.

The spelling of 648854524345 in words is "six hundred forty-eight billion, eight hundred fifty-four million, five hundred twenty-four thousand, three hundred forty-five".