18673422504573 has 16 divisors (see below), whose sum is σ = 26524075092480. Its totient is φ = 11651647266864.

The previous prime is 18673422504571. The next prime is 18673422504613. The reversal of 18673422504573 is 37540522437681.

It is not a de Polignac number, because 18673422504573 - 2¹ = 18673422504571 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18673422504571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1973512761 + ... + 1973522222.

It is an arithmetic number, because the mean of its divisors is an integer number (1657754693280).

Almost surely, 2^{18673422504573} is an apocalyptic number.

It is an amenable number.

18673422504573 is a deficient number, since it is larger than the sum of its proper divisors (7850652587907).

18673422504573 is a wasteful number, since it uses less digits than its factorization.

18673422504573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3947035088.

The product of its (nonzero) digits is 33868800, while the sum is 57.

The spelling of 18673422504573 in words is "eighteen trillion, six hundred seventy-three billion, four hundred twenty-two million, five hundred four thousand, five hundred seventy-three".