8249640047 has 8 divisors (see below), whose sum is σ = 9005158272. Its totient is φ = 7495047000.

The previous prime is 8249640043. The next prime is 8249640059. The reversal of 8249640047 is 7400469428.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8249640047 - 2² = 8249640043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8249640043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212579 + ... + 248372.

It is an arithmetic number, because the mean of its divisors is an integer number (1125644784).

Almost surely, 2^8249640047 is an apocalyptic number.

8249640047 is a deficient number, since it is larger than the sum of its proper divisors (755518225).

8249640047 is a wasteful number, since it uses less digits than its factorization.

8249640047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462589.

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 8249640047 is about 90827.5291252603. The cubic root of 8249640047 is about 2020.5906228843.

The spelling of 8249640047 in words is "eight billion, two hundred forty-nine million, six hundred forty thousand, forty-seven".