8452749499 has 4 divisors (see below), whose sum is σ = 8453110336. Its totient is φ = 8452388664.

The previous prime is 8452749463. The next prime is 8452749521. The reversal of 8452749499 is 9949472548.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8452749499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8452741499) 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, 142644 + ... + 193009.

It is an arithmetic number, because the mean of its divisors is an integer number (2113277584).

Almost surely, 2^8452749499 is an apocalyptic number.

8452749499 is a deficient number, since it is larger than the sum of its proper divisors (360837).

8452749499 is a wasteful number, since it uses less digits than its factorization.

8452749499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360836.

The product of its digits is 26127360, while the sum is 61.

The square root of 8452749499 is about 91938.8356408759. The cubic root of 8452749499 is about 2037.0389486313.

The spelling of 8452749499 in words is "eight billion, four hundred fifty-two million, seven hundred forty-nine thousand, four hundred ninety-nine".