42840999834 has 8 divisors (see below), whose sum is σ = 85681999680. Its totient is φ = 14280333276.

The previous prime is 42840999833. The next prime is 42840999863. The reversal of 42840999834 is 43899904824.

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

42840999834 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (42840999833) 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, 3570083314 + ... + 3570083325.

It is an arithmetic number, because the mean of its divisors is an integer number (10710249960).

Almost surely, 2^42840999834 is an apocalyptic number.

42840999834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42840999834 is a wasteful number, since it uses less digits than its factorization.

42840999834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7140166644.

The product of its (nonzero) digits is 17915904, while the sum is 60.

The spelling of 42840999834 in words is "forty-two billion, eight hundred forty million, nine hundred ninety-nine thousand, eight hundred thirty-four".