42774317673 has 4 divisors (see below), whose sum is σ = 57032423568. Its totient is φ = 28516211780.

The previous prime is 42774317629. The next prime is 42774317683. The reversal of 42774317673 is 37671347724.

42774317673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42774317673 - 2⁹ = 42774317161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42774317683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7129052943 + ... + 7129052948.

It is an arithmetic number, because the mean of its divisors is an integer number (14258105892).

Almost surely, 2^42774317673 is an apocalyptic number.

It is an amenable number.

42774317673 is a deficient number, since it is larger than the sum of its proper divisors (14258105895).

42774317673 is a wasteful number, since it uses less digits than its factorization.

42774317673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14258105894.

The product of its digits is 4148928, while the sum is 51.

The spelling of 42774317673 in words is "forty-two billion, seven hundred seventy-four million, three hundred seventeen thousand, six hundred seventy-three".