40177795069 has 2 divisors, whose sum is σ = 40177795070. Its totient is φ = 40177795068.

The previous prime is 40177795013. The next prime is 40177795079. The reversal of 40177795069 is 96059777104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28236769444 + 11941025625 = 168038^2 + 109275^2 .

It is a cyclic number.

It is not a de Polignac number, because 40177795069 - 2⁷ = 40177794941 is a prime.

It is a super-2 number, since 2×40177795069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40177795079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20088897534 + 20088897535.

It is an arithmetic number, because the mean of its divisors is an integer number (20088897535).

Almost surely, 2^40177795069 is an apocalyptic number.

It is an amenable number.

40177795069 is a deficient number, since it is larger than the sum of its proper divisors (1).

40177795069 is an equidigital number, since it uses as much as digits as its factorization.

40177795069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3333960, while the sum is 55.

The spelling of 40177795069 in words is "forty billion, one hundred seventy-seven million, seven hundred ninety-five thousand, sixty-nine".