42666478011 has 24 divisors (see below), whose sum is σ = 62817431040. Its totient is φ = 27896409216.

The previous prime is 42666477983. The next prime is 42666478013. The reversal of 42666478011 is 11087466624.

It is not a de Polignac number, because 42666478011 - 2⁵ = 42666477979 is a prime.

It is a super-2 number, since 2×42666478011² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42666478013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1265055 + ... + 1298343.

It is an arithmetic number, because the mean of its divisors is an integer number (2617392960).

Almost surely, 2^42666478011 is an apocalyptic number.

42666478011 is a deficient number, since it is larger than the sum of its proper divisors (20150953029).

42666478011 is a wasteful number, since it uses less digits than its factorization.

42666478011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36035 (or 36032 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 42666478011 in words is "forty-two billion, six hundred sixty-six million, four hundred seventy-eight thousand, eleven".