42788311066 has 8 divisors (see below), whose sum is σ = 64188936000. Its totient is φ = 21391999068.

The previous prime is 42788311057. The next prime is 42788311067. The reversal of 42788311066 is 66011388724.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (42788311067) 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 3 ways as a sum of consecutive naturals, for example, 1053316 + ... + 1093183.

It is an arithmetic number, because the mean of its divisors is an integer number (8023617000).

Almost surely, 2^42788311066 is an apocalyptic number.

42788311066 is a deficient number, since it is larger than the sum of its proper divisors (21400624934).

42788311066 is a wasteful number, since it uses less digits than its factorization.

42788311066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156468.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 42788311066 in words is "forty-two billion, seven hundred eighty-eight million, three hundred eleven thousand, sixty-six".