42051340555017 has 16 divisors (see below), whose sum is σ = 57518177525760. Its totient is φ = 27314714844432.

The previous prime is 42051340554973. The next prime is 42051340555019. The reversal of 42051340555017 is 71055504315024.

It is not a de Polignac number, because 42051340555017 - 2⁶ = 42051340554953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42051340555017.

It is not an unprimeable number, because it can be changed into a prime (42051340555019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 668660167 + ... + 668723052.

It is an arithmetic number, because the mean of its divisors is an integer number (3594886095360).

Almost surely, 2^{42051340555017} is an apocalyptic number.

42051340555017 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

42051340555017 is a deficient number, since it is larger than the sum of its proper divisors (15466836970743).

42051340555017 is a wasteful number, since it uses less digits than its factorization.

42051340555017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337383492.

The product of its (nonzero) digits is 420000, while the sum is 42.

The spelling of 42051340555017 in words is "forty-two trillion, fifty-one billion, three hundred forty million, five hundred fifty-five thousand, seventeen".