40406554064077 has 2 divisors, whose sum is σ = 40406554064078. Its totient is φ = 40406554064076.

The previous prime is 40406554063961. The next prime is 40406554064087. The reversal of 40406554064077 is 77046045560404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40041483131556 + 365070932521 = 6327834^2 + 604211^2 .

It is a cyclic number.

It is not a de Polignac number, because 40406554064077 - 2²⁷ = 40406419846349 is a prime.

It is a super-3 number, since 3×40406554064077³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40406554064087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20203277032038 + 20203277032039.

It is an arithmetic number, because the mean of its divisors is an integer number (20203277032039).

Almost surely, 2^{40406554064077} is an apocalyptic number.

It is an amenable number.

40406554064077 is a deficient number, since it is larger than the sum of its proper divisors (1).

40406554064077 is an equidigital number, since it uses as much as digits as its factorization.

40406554064077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11289600, while the sum is 52.

The spelling of 40406554064077 in words is "forty trillion, four hundred six billion, five hundred fifty-four million, sixty-four thousand, seventy-seven".