1573487543923 has 8 divisors (see below), whose sum is σ = 1666058269680. Its totient is φ = 1480918222080.

The previous prime is 1573487543879. The next prime is 1573487543933. The reversal of 1573487543923 is 3293457843751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1573487543923 - 2¹⁷ = 1573487412851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1573487543933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2728663 + ... + 3254623.

It is an arithmetic number, because the mean of its divisors is an integer number (208257283710).

Almost surely, 2^{1573487543923} is an apocalyptic number.

1573487543923 is a deficient number, since it is larger than the sum of its proper divisors (92570725757).

1573487543923 is a wasteful number, since it uses less digits than its factorization.

1573487543923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701957.

The product of its digits is 76204800, while the sum is 61.

The spelling of 1573487543923 in words is "one trillion, five hundred seventy-three billion, four hundred eighty-seven million, five hundred forty-three thousand, nine hundred twenty-three".