42047346643 has 8 divisors (see below), whose sum is σ = 42442750080. Its totient is φ = 41653225920.

The previous prime is 42047346631. The next prime is 42047346647. The reversal of 42047346643 is 34664374024.

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 42047346643 - 2¹³ = 42047338451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42047346643.

It is not an unprimeable number, because it can be changed into a prime (42047346647) 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, 254748 + ... + 385993.

It is an arithmetic number, because the mean of its divisors is an integer number (5305343760).

Almost surely, 2^42047346643 is an apocalyptic number.

42047346643 is a deficient number, since it is larger than the sum of its proper divisors (395403437).

42047346643 is a wasteful number, since it uses less digits than its factorization.

42047346643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641357.

The product of its (nonzero) digits is 1161216, while the sum is 43.

The spelling of 42047346643 in words is "forty-two billion, forty-seven million, three hundred forty-six thousand, six hundred forty-three".