42049780111 has 2 divisors, whose sum is σ = 42049780112. Its totient is φ = 42049780110.

The previous prime is 42049780103. The next prime is 42049780133. The reversal of 42049780111 is 11108794024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42049780111 - 2³ = 42049780103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42049780181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21024890055 + 21024890056.

It is an arithmetic number, because the mean of its divisors is an integer number (21024890056).

Almost surely, 2^42049780111 is an apocalyptic number.

42049780111 is a deficient number, since it is larger than the sum of its proper divisors (1).

42049780111 is an equidigital number, since it uses as much as digits as its factorization.

42049780111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 42049780111 in words is "forty-two billion, forty-nine million, seven hundred eighty thousand, one hundred eleven".