2572163993 has 4 divisors (see below), whose sum is σ = 2939616000. Its totient is φ = 2204711988.

The previous prime is 2572163983. The next prime is 2572164011. The reversal of 2572163993 is 3993612752.

2572163993 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2572163993 - 2⁴ = 2572163977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2572163963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183725993 + ... + 183726006.

It is an arithmetic number, because the mean of its divisors is an integer number (734904000).

Almost surely, 2^2572163993 is an apocalyptic number.

It is an amenable number.

2572163993 is a deficient number, since it is larger than the sum of its proper divisors (367452007).

2572163993 is an equidigital number, since it uses as much as digits as its factorization.

2572163993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367452006.

The product of its digits is 612360, while the sum is 47.

The square root of 2572163993 is about 50716.5061198029. The cubic root of 2572163993 is about 1370.1440154428.

The spelling of 2572163993 in words is "two billion, five hundred seventy-two million, one hundred sixty-three thousand, nine hundred ninety-three".