40218387611 has 2 divisors, whose sum is σ = 40218387612. Its totient is φ = 40218387610.

The previous prime is 40218387607. The next prime is 40218387623. The reversal of 40218387611 is 11678381204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40218387611 - 2² = 40218387607 is a prime.

It is not a weakly prime, because it can be changed into another prime (40218387661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20109193805 + 20109193806.

It is an arithmetic number, because the mean of its divisors is an integer number (20109193806).

Almost surely, 2^40218387611 is an apocalyptic number.

40218387611 is a deficient number, since it is larger than the sum of its proper divisors (1).

40218387611 is an equidigital number, since it uses as much as digits as its factorization.

40218387611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 40218387611 in words is "forty billion, two hundred eighteen million, three hundred eighty-seven thousand, six hundred eleven".