42000555555 has 144 divisors (see below), whose sum is σ = 89954673120. Its totient is φ = 18013169664.

The previous prime is 42000555547. The next prime is 42000555577. The reversal of 42000555555 is 55555500024.

It is not a de Polignac number, because 42000555555 - 2³ = 42000555547 is a prime.

42000555555 is a modest number, since divided by 555555 gives 42000 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 13005681 + ... + 13008909.

It is an arithmetic number, because the mean of its divisors is an integer number (624685230).

Almost surely, 2^42000555555 is an apocalyptic number.

42000555555 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42000555555 is an abundant number, since it is smaller than the sum of its proper divisors (47954117565).

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

42000555555 is a wasteful number, since it uses less digits than its factorization.

42000555555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618 (or 3608 counting only the distinct ones).

The product of its (nonzero) digits is 125000, while the sum is 36.

The spelling of 42000555555 in words is "forty-two billion, five hundred fifty-five thousand, five hundred fifty-five".