42673163645 has 16 divisors (see below), whose sum is σ = 58583762688. Its totient is φ = 29231314560.

The previous prime is 42673163641. The next prime is 42673163657. The reversal of 42673163645 is 54636137624.

It is not a de Polignac number, because 42673163645 - 2² = 42673163641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42673163645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42673163641) 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, 596576 + ... + 664265.

It is an arithmetic number, because the mean of its divisors is an integer number (3661485168).

Almost surely, 2^42673163645 is an apocalyptic number.

It is an amenable number.

42673163645 is a deficient number, since it is larger than the sum of its proper divisors (15910599043).

42673163645 is a wasteful number, since it uses less digits than its factorization.

42673163645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261820.

The product of its digits is 2177280, while the sum is 47.

The spelling of 42673163645 in words is "forty-two billion, six hundred seventy-three million, one hundred sixty-three thousand, six hundred forty-five".