42812281773 has 12 divisors (see below), whose sum is σ = 61883316768. Its totient is φ = 28521511560.

The previous prime is 42812281769. The next prime is 42812281793. The reversal of 42812281773 is 37718221824.

It is not a de Polignac number, because 42812281773 - 2² = 42812281769 is a prime.

It is a super-2 number, since 2×42812281773² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42812281703) 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, 1653913 + ... + 1679598.

It is an arithmetic number, because the mean of its divisors is an integer number (5156943064).

Almost surely, 2^42812281773 is an apocalyptic number.

It is an amenable number.

42812281773 is a deficient number, since it is larger than the sum of its proper divisors (19071034995).

42812281773 is a wasteful number, since it uses less digits than its factorization.

42812281773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3334944 (or 3334941 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The spelling of 42812281773 in words is "forty-two billion, eight hundred twelve million, two hundred eighty-one thousand, seven hundred seventy-three".