42147005647 has 8 divisors (see below), whose sum is σ = 43046839296. Its totient is φ = 41247300792.

The previous prime is 42147005633. The next prime is 42147005651. The reversal of 42147005647 is 74650074124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42147005647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42147006647) 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, 937158 + ... + 981100.

It is an arithmetic number, because the mean of its divisors is an integer number (5380854912).

Almost surely, 2^42147005647 is an apocalyptic number.

42147005647 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

42147005647 is a deficient number, since it is larger than the sum of its proper divisors (899833649).

42147005647 is a wasteful number, since it uses less digits than its factorization.

42147005647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64397.

The product of its (nonzero) digits is 188160, while the sum is 40.

The spelling of 42147005647 in words is "forty-two billion, one hundred forty-seven million, five thousand, six hundred forty-seven".