41644870499 has 2 divisors, whose sum is σ = 41644870500. Its totient is φ = 41644870498.

The previous prime is 41644870439. The next prime is 41644870549. The reversal of 41644870499 is 99407844614.

It is a happy number.

41644870499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41644870499 is a prime.

It is not a weakly prime, because it can be changed into another prime (41644870439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20822435249 + 20822435250.

It is an arithmetic number, because the mean of its divisors is an integer number (20822435250).

Almost surely, 2^41644870499 is an apocalyptic number.

41644870499 is a deficient number, since it is larger than the sum of its proper divisors (1).

41644870499 is an equidigital number, since it uses as much as digits as its factorization.

41644870499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6967296, while the sum is 56.

The spelling of 41644870499 in words is "forty-one billion, six hundred forty-four million, eight hundred seventy thousand, four hundred ninety-nine".