42718840540 has 24 divisors (see below), whose sum is σ = 91897605072. Its totient is φ = 16670766720.

The previous prime is 42718840531. The next prime is 42718840649. The reversal of 42718840540 is 4504881724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26047254 + ... + 26048893.

It is an arithmetic number, because the mean of its divisors is an integer number (3829066878).

Almost surely, 2^42718840540 is an apocalyptic number.

It is an amenable number.

42718840540 is an abundant number, since it is smaller than the sum of its proper divisors (49178764532).

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

42718840540 is a wasteful number, since it uses less digits than its factorization.

42718840540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52096197 (or 52096195 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 43.

The spelling of 42718840540 in words is "forty-two billion, seven hundred eighteen million, eight hundred forty thousand, five hundred forty".