40402081567 has 2 divisors, whose sum is σ = 40402081568. Its totient is φ = 40402081566.

The previous prime is 40402081519. The next prime is 40402081571. The reversal of 40402081567 is 76518020404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40402081567 - 2¹⁹ = 40401557279 is a prime.

It is a super-3 number, since 3×40402081567³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40402081507) 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, 20201040783 + 20201040784.

It is an arithmetic number, because the mean of its divisors is an integer number (20201040784).

Almost surely, 2^40402081567 is an apocalyptic number.

40402081567 is a deficient number, since it is larger than the sum of its proper divisors (1).

40402081567 is an equidigital number, since it uses as much as digits as its factorization.

40402081567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 40402081567 in words is "forty billion, four hundred two million, eighty-one thousand, five hundred sixty-seven".