42244246773 has 12 divisors (see below), whose sum is σ = 61579280620. Its totient is φ = 27904455936.

The previous prime is 42244246741. The next prime is 42244246783. The reversal of 42244246773 is 37764244224.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 31462954884 + 10781291889 = 177378^2 + 103833^2 .

It is not a de Polignac number, because 42244246773 - 2⁵ = 42244246741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42244246783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21530236 + ... + 21532197.

Almost surely, 2^42244246773 is an apocalyptic number.

It is an amenable number.

42244246773 is a deficient number, since it is larger than the sum of its proper divisors (19335033847).

42244246773 is a wasteful number, since it uses less digits than its factorization.

42244246773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43062548 (or 43062545 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 45.

The spelling of 42244246773 in words is "forty-two billion, two hundred forty-four million, two hundred forty-six thousand, seven hundred seventy-three".