42342281745 has 16 divisors (see below), whose sum is σ = 67789535040. Its totient is φ = 22568588864.

The previous prime is 42342281659. The next prime is 42342281777. The reversal of 42342281745 is 54718224324.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 42342281745 - 2¹⁷ = 42342150673 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42342281697 and 42342281706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 847494 + ... + 896063.

It is an arithmetic number, because the mean of its divisors is an integer number (4236845940).

Almost surely, 2^42342281745 is an apocalyptic number.

It is an amenable number.

42342281745 is a deficient number, since it is larger than the sum of its proper divisors (25447253295).

42342281745 is a wasteful number, since it uses less digits than its factorization.

42342281745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745184.

The product of its digits is 430080, while the sum is 42.

The spelling of 42342281745 in words is "forty-two billion, three hundred forty-two million, two hundred eighty-one thousand, seven hundred forty-five".