8542452791 has 4 divisors (see below), whose sum is σ = 9044950032. Its totient is φ = 8039955552.

The previous prime is 8542452769. The next prime is 8542452803. The reversal of 8542452791 is 1972542458.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8542452791 - 2¹⁴ = 8542436407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8542452091) 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, 251248595 + ... + 251248628.

It is an arithmetic number, because the mean of its divisors is an integer number (2261237508).

Almost surely, 2^8542452791 is an apocalyptic number.

8542452791 is a deficient number, since it is larger than the sum of its proper divisors (502497241).

8542452791 is a wasteful number, since it uses less digits than its factorization.

8542452791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502497240.

The product of its digits is 806400, while the sum is 47.

The square root of 8542452791 is about 92425.3904022050. The cubic root of 8542452791 is about 2044.2195112226.

The spelling of 8542452791 in words is "eight billion, five hundred forty-two million, four hundred fifty-two thousand, seven hundred ninety-one".