40544525293 has 2 divisors, whose sum is σ = 40544525294. Its totient is φ = 40544525292.

The previous prime is 40544525213. The next prime is 40544525369. The reversal of 40544525293 is 39252544504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33914168964 + 6630356329 = 184158^2 + 81427^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40544525293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40544525213) 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, 20272262646 + 20272262647.

It is an arithmetic number, because the mean of its divisors is an integer number (20272262647).

Almost surely, 2^40544525293 is an apocalyptic number.

It is an amenable number.

40544525293 is a deficient number, since it is larger than the sum of its proper divisors (1).

40544525293 is an equidigital number, since it uses as much as digits as its factorization.

40544525293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 40544525293 in words is "forty billion, five hundred forty-four million, five hundred twenty-five thousand, two hundred ninety-three".