8542971361 has 4 divisors (see below), whose sum is σ = 8543156224. Its totient is φ = 8542786500.

The previous prime is 8542971341. The next prime is 8542971431. The reversal of 8542971361 is 1631792458.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8542971361 - 2¹¹ = 8542969313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8542971341) 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, 45136 + ... + 138286.

It is an arithmetic number, because the mean of its divisors is an integer number (2135789056).

Almost surely, 2^8542971361 is an apocalyptic number.

It is an amenable number.

8542971361 is a deficient number, since it is larger than the sum of its proper divisors (184863).

8542971361 is an equidigital number, since it uses as much as digits as its factorization.

8542971361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184862.

The product of its digits is 362880, while the sum is 46.

The square root of 8542971361 is about 92428.1957034757. The cubic root of 8542971361 is about 2044.2608751996.

The spelling of 8542971361 in words is "eight billion, five hundred forty-two million, nine hundred seventy-one thousand, three hundred sixty-one".