673234574545 has 16 divisors (see below), whose sum is σ = 870170132160. Its totient is φ = 497075603904.

The previous prime is 673234574543. The next prime is 673234574567. The reversal of 673234574545 is 545475432376.

It is a cyclic number.

It is not a de Polignac number, because 673234574545 - 2¹ = 673234574543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (673234574543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 459235 + ... + 1247944.

It is an arithmetic number, because the mean of its divisors is an integer number (54385633260).

Almost surely, 2^673234574545 is an apocalyptic number.

673234574545 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

673234574545 is a deficient number, since it is larger than the sum of its proper divisors (196935557615).

673234574545 is a wasteful number, since it uses less digits than its factorization.

673234574545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713264.

The product of its digits is 42336000, while the sum is 55.

The spelling of 673234574545 in words is "six hundred seventy-three billion, two hundred thirty-four million, five hundred seventy-four thousand, five hundred forty-five".