40027045766549 has 2 divisors, whose sum is σ = 40027045766550. Its totient is φ = 40027045766548.

The previous prime is 40027045766531. The next prime is 40027045766593. The reversal of 40027045766549 is 94566754072004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32985150292900 + 7041895473649 = 5743270^2 + 2653657^2 .

It is a cyclic number.

It is not a de Polignac number, because 40027045766549 - 2²⁰ = 40027044717973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40027045760549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20013522883274 + 20013522883275.

It is an arithmetic number, because the mean of its divisors is an integer number (20013522883275).

Almost surely, 2^{40027045766549} is an apocalyptic number.

It is an amenable number.

40027045766549 is a deficient number, since it is larger than the sum of its proper divisors (1).

40027045766549 is an equidigital number, since it uses as much as digits as its factorization.

40027045766549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50803200, while the sum is 59.

The spelling of 40027045766549 in words is "forty trillion, twenty-seven billion, forty-five million, seven hundred sixty-six thousand, five hundred forty-nine".