49205858891017 has 2 divisors, whose sum is σ = 49205858891018. Its totient is φ = 49205858891016.

The previous prime is 49205858891009. The next prime is 49205858891083. The reversal of 49205858891017 is 71019885850294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39001386421881 + 10204472469136 = 6245109^2 + 3194444^2 .

It is a cyclic number.

It is not a de Polignac number, because 49205858891017 - 2³ = 49205858891009 is a prime.

It is not a weakly prime, because it can be changed into another prime (49205858897017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24602929445508 + 24602929445509.

It is an arithmetic number, because the mean of its divisors is an integer number (24602929445509).

Almost surely, 2^{49205858891017} is an apocalyptic number.

It is an amenable number.

49205858891017 is a deficient number, since it is larger than the sum of its proper divisors (1).

49205858891017 is an equidigital number, since it uses as much as digits as its factorization.

49205858891017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58060800, while the sum is 67.

The spelling of 49205858891017 in words is "forty-nine trillion, two hundred five billion, eight hundred fifty-eight million, eight hundred ninety-one thousand, seventeen".