8542791745 has 4 divisors (see below), whose sum is σ = 10251350100. Its totient is φ = 6834233392.

The previous prime is 8542791701. The next prime is 8542791791. The reversal of 8542791745 is 5471972458.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2306688784 + 6236102961 = 48028^2 + 78969^2 .

It is a cyclic number.

It is not a de Polignac number, because 8542791745 - 2¹⁵ = 8542758977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8542791692 and 8542791701.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854279170 + ... + 854279179.

It is an arithmetic number, because the mean of its divisors is an integer number (2562837525).

Almost surely, 2^8542791745 is an apocalyptic number.

It is an amenable number.

8542791745 is a deficient number, since it is larger than the sum of its proper divisors (1708558355).

8542791745 is a wasteful number, since it uses less digits than its factorization.

8542791745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708558354.

The product of its digits is 2822400, while the sum is 52.

The square root of 8542791745 is about 92427.2240468143. The cubic root of 8542791745 is about 2044.2465482354.

The spelling of 8542791745 in words is "eight billion, five hundred forty-two million, seven hundred ninety-one thousand, seven hundred forty-five".