42774308642 has 12 divisors (see below), whose sum is σ = 69476614290. Its totient is φ = 19741988448.

The previous prime is 42774308641. The next prime is 42774308671. The reversal of 42774308642 is 24680347724.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 23350590481 + 19423718161 = 152809^2 + 139369^2 .

It is not an unprimeable number, because it can be changed into a prime (42774308641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63275267 + ... + 63275942.

Almost surely, 2^42774308642 is an apocalyptic number.

42774308642 is a deficient number, since it is larger than the sum of its proper divisors (26702305648).

42774308642 is a wasteful number, since it uses less digits than its factorization.

42774308642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126551237 (or 126551224 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 47.

The spelling of 42774308642 in words is "forty-two billion, seven hundred seventy-four million, three hundred eight thousand, six hundred forty-two".