41555409487 has 2 divisors, whose sum is σ = 41555409488. Its totient is φ = 41555409486.

The previous prime is 41555409473. The next prime is 41555409529. The reversal of 41555409487 is 78490455514.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41555409487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41555409187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20777704743 + 20777704744.

It is an arithmetic number, because the mean of its divisors is an integer number (20777704744).

Almost surely, 2^41555409487 is an apocalyptic number.

41555409487 is a deficient number, since it is larger than the sum of its proper divisors (1).

41555409487 is an equidigital number, since it uses as much as digits as its factorization.

41555409487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032000, while the sum is 52.

The spelling of 41555409487 in words is "forty-one billion, five hundred fifty-five million, four hundred nine thousand, four hundred eighty-seven".