42640662111 has 16 divisors (see below), whose sum is σ = 59523327360. Its totient is φ = 27116173280.

The previous prime is 42640662101. The next prime is 42640662137. The reversal of 42640662111 is 11126604624.

It is a cyclic number.

It is not a de Polignac number, because 42640662111 - 2¹⁰ = 42640661087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42640662101) 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 15 ways as a sum of consecutive naturals, for example, 2945325 + ... + 2959766.

It is an arithmetic number, because the mean of its divisors is an integer number (3720207960).

Almost surely, 2^42640662111 is an apocalyptic number.

42640662111 is a deficient number, since it is larger than the sum of its proper divisors (16882665249).

42640662111 is a wasteful number, since it uses less digits than its factorization.

42640662111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5905206.

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 42640662111 in words is "forty-two billion, six hundred forty million, six hundred sixty-two thousand, one hundred eleven".