8124719573 has 4 divisors (see below), whose sum is σ = 8124910668. Its totient is φ = 8124528480.

The previous prime is 8124719569. The next prime is 8124719579. The reversal of 8124719573 is 3759174218.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3759174218 = 2 ⋅1879587109.

It can be written as a sum of positive squares in 2 ways, for example, as 430272049 + 7694447524 = 20743^2 + 87718^2 .

It is a cyclic number.

It is not a de Polignac number, because 8124719573 - 2² = 8124719569 is a prime.

It is a super-2 number, since 2×8124719573² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8124719579) 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, 233 + ... + 127473.

It is an arithmetic number, because the mean of its divisors is an integer number (2031227667).

Almost surely, 2^8124719573 is an apocalyptic number.

It is an amenable number.

8124719573 is a deficient number, since it is larger than the sum of its proper divisors (191095).

8124719573 is a wasteful number, since it uses less digits than its factorization.

8124719573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191094.

The product of its digits is 423360, while the sum is 47.

The square root of 8124719573 is about 90137.2263440583. The cubic root of 8124719573 is about 2010.3397504118.

The spelling of 8124719573 in words is "eight billion, one hundred twenty-four million, seven hundred nineteen thousand, five hundred seventy-three".