40106587049 has 2 divisors, whose sum is σ = 40106587050. Its totient is φ = 40106587048.

The previous prime is 40106587009. The next prime is 40106587067. The reversal of 40106587049 is 94078560104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39161639449 + 944947600 = 197893^2 + 30740^2 .

It is a cyclic number.

It is not a de Polignac number, because 40106587049 - 2²⁴ = 40089809833 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40106587009) 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, 20053293524 + 20053293525.

It is an arithmetic number, because the mean of its divisors is an integer number (20053293525).

Almost surely, 2^40106587049 is an apocalyptic number.

It is an amenable number.

40106587049 is a deficient number, since it is larger than the sum of its proper divisors (1).

40106587049 is an equidigital number, since it uses as much as digits as its factorization.

40106587049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 40106587049 in words is "forty billion, one hundred six million, five hundred eighty-seven thousand, forty-nine".