40781767111 has 2 divisors, whose sum is σ = 40781767112. Its totient is φ = 40781767110.

The previous prime is 40781767093. The next prime is 40781767123. The reversal of 40781767111 is 11176718704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40781767111 - 2³¹ = 38634283463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40785767111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20390883555 + 20390883556.

It is an arithmetic number, because the mean of its divisors is an integer number (20390883556).

Almost surely, 2^40781767111 is an apocalyptic number.

40781767111 is a deficient number, since it is larger than the sum of its proper divisors (1).

40781767111 is an equidigital number, since it uses as much as digits as its factorization.

40781767111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 43.

The spelling of 40781767111 in words is "forty billion, seven hundred eighty-one million, seven hundred sixty-seven thousand, one hundred eleven".