40144155277 has 2 divisors, whose sum is σ = 40144155278. Its totient is φ = 40144155276.

The previous prime is 40144155269. The next prime is 40144155371. The reversal of 40144155277 is 77255144104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39415749156 + 728406121 = 198534^2 + 26989^2 .

It is a cyclic number.

It is not a de Polignac number, because 40144155277 - 2³ = 40144155269 is a prime.

It is a super-2 number, since 2×40144155277² (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 (40144155677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20072077638 + 20072077639.

It is an arithmetic number, because the mean of its divisors is an integer number (20072077639).

Almost surely, 2^40144155277 is an apocalyptic number.

It is an amenable number.

40144155277 is a deficient number, since it is larger than the sum of its proper divisors (1).

40144155277 is an equidigital number, since it uses as much as digits as its factorization.

40144155277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 156800, while the sum is 40.

The spelling of 40144155277 in words is "forty billion, one hundred forty-four million, one hundred fifty-five thousand, two hundred seventy-seven".