42857861500 has 24 divisors (see below), whose sum is σ = 93601570608. Its totient is φ = 17143144400.

The previous prime is 42857861483. The next prime is 42857861507. The reversal of 42857861500 is 516875824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42857861507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42857362 + ... + 42858361.

It is an arithmetic number, because the mean of its divisors is an integer number (3900065442).

Almost surely, 2^42857861500 is an apocalyptic number.

It is an amenable number.

42857861500 is an abundant number, since it is smaller than the sum of its proper divisors (50743709108).

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

42857861500 is a wasteful number, since it uses less digits than its factorization.

42857861500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85715742 (or 85715730 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 42857861500 in words is "forty-two billion, eight hundred fifty-seven million, eight hundred sixty-one thousand, five hundred".