40961690722213 has 2 divisors, whose sum is σ = 40961690722214. Its totient is φ = 40961690722212.

The previous prime is 40961690722187. The next prime is 40961690722219. The reversal of 40961690722213 is 31222709616904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35089487155044 + 5872203567169 = 5923638^2 + 2423263^2 .

It is a cyclic number.

It is not a de Polignac number, because 40961690722213 - 2⁹ = 40961690721701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40961690722219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20480845361106 + 20480845361107.

It is an arithmetic number, because the mean of its divisors is an integer number (20480845361107).

Almost surely, 2^{40961690722213} is an apocalyptic number.

It is an amenable number.

40961690722213 is a deficient number, since it is larger than the sum of its proper divisors (1).

40961690722213 is an equidigital number, since it uses as much as digits as its factorization.

40961690722213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 40961690722213 in words is "forty trillion, nine hundred sixty-one billion, six hundred ninety million, seven hundred twenty-two thousand, two hundred thirteen".