40405179611 has 2 divisors, whose sum is σ = 40405179612. Its totient is φ = 40405179610.

The previous prime is 40405179547. The next prime is 40405179623. The reversal of 40405179611 is 11697150404.

It is a happy number.

40405179611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40405179611 - 2⁶ = 40405179547 is a prime.

It is a super-2 number, since 2×40405179611² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40405179691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20202589805 + 20202589806.

It is an arithmetic number, because the mean of its divisors is an integer number (20202589806).

Almost surely, 2^40405179611 is an apocalyptic number.

40405179611 is a deficient number, since it is larger than the sum of its proper divisors (1).

40405179611 is an equidigital number, since it uses as much as digits as its factorization.

40405179611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 40405179611 in words is "forty billion, four hundred five million, one hundred seventy-nine thousand, six hundred eleven".