8547008642 has 8 divisors (see below), whose sum is σ = 13062409596. Its totient is φ = 4192872112.

The previous prime is 8547008641. The next prime is 8547008653. The reversal of 8547008642 is 2468007458.

It can be written as a sum of positive squares in 2 ways, for example, as 8463816001 + 83192641 = 91999^2 + 9121^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 8547008593 and 8547008602.

It is not an unprimeable number, because it can be changed into a prime (8547008641) 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, 40315973 + ... + 40316184.

Almost surely, 2^8547008642 is an apocalyptic number.

8547008642 is a deficient number, since it is larger than the sum of its proper divisors (4515400954).

8547008642 is a wasteful number, since it uses less digits than its factorization.

8547008642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80632212.

The product of its (nonzero) digits is 430080, while the sum is 44.

The square root of 8547008642 is about 92450.0332179497. The cubic root of 8547008642 is about 2044.5828535629.

The spelling of 8547008642 in words is "eight billion, five hundred forty-seven million, eight thousand, six hundred forty-two".