673562545803 has 12 divisors (see below), whose sum is σ = 1111912774128. Its totient is φ = 384892883280.

The previous prime is 673562545801. The next prime is 673562545823. The reversal of 673562545803 is 308545265376.

673562545803 is a `hidden beast` number, since 6 + 7 + 3 + 5 + 6 + 2 + 54 + 580 + 3 = 666.

It is not a de Polignac number, because 673562545803 - 2¹ = 673562545801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 673562545803.

It is not an unprimeable number, because it can be changed into a prime (673562545801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5345734428 + ... + 5345734553.

It is an arithmetic number, because the mean of its divisors is an integer number (92659397844).

Almost surely, 2^673562545803 is an apocalyptic number.

673562545803 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

673562545803 is a deficient number, since it is larger than the sum of its proper divisors (438350228325).

673562545803 is a wasteful number, since it uses less digits than its factorization.

673562545803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10691468994 (or 10691468991 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 54.

The spelling of 673562545803 in words is "six hundred seventy-three billion, five hundred sixty-two million, five hundred forty-five thousand, eight hundred three".