42501775044345 has 64 divisors (see below), whose sum is σ = 70448133888000. Its totient is φ = 21854756489216.

The previous prime is 42501775044317. The next prime is 42501775044347. The reversal of 42501775044345 is 54344057710524.

It is a cyclic number.

It is not a de Polignac number, because 42501775044345 - 2¹¹ = 42501775042297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42501775044347) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2856486616 + ... + 2856501494.

It is an arithmetic number, because the mean of its divisors is an integer number (1100752092000).

Almost surely, 2^{42501775044345} is an apocalyptic number.

It is an amenable number.

42501775044345 is a deficient number, since it is larger than the sum of its proper divisors (27946358843655).

42501775044345 is a wasteful number, since it uses less digits than its factorization.

42501775044345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23842.

The product of its (nonzero) digits is 9408000, while the sum is 51.

The spelling of 42501775044345 in words is "forty-two trillion, five hundred one billion, seven hundred seventy-five million, forty-four thousand, three hundred forty-five".