40711568461 has 2 divisors, whose sum is σ = 40711568462. Its totient is φ = 40711568460.

The previous prime is 40711568407. The next prime is 40711568497. The reversal of 40711568461 is 16486511704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24097905225 + 16613663236 = 155235^2 + 128894^2 .

It is a cyclic number.

It is not a de Polignac number, because 40711568461 - 2⁷ = 40711568333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40711562461) 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, 20355784230 + 20355784231.

It is an arithmetic number, because the mean of its divisors is an integer number (20355784231).

Almost surely, 2^40711568461 is an apocalyptic number.

It is an amenable number.

40711568461 is a deficient number, since it is larger than the sum of its proper divisors (1).

40711568461 is an equidigital number, since it uses as much as digits as its factorization.

40711568461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 40711568461 in words is "forty billion, seven hundred eleven million, five hundred sixty-eight thousand, four hundred sixty-one".