54719091617 has 2 divisors, whose sum is σ = 54719091618. Its totient is φ = 54719091616.

The previous prime is 54719091589. The next prime is 54719091677. The reversal of 54719091617 is 71619091745.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32130204001 + 22588887616 = 179249^2 + 150296^2 .

It is a cyclic number.

It is not a de Polignac number, because 54719091617 - 2¹⁶ = 54719026081 is a prime.

It is not a weakly prime, because it can be changed into another prime (54719091677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27359545808 + 27359545809.

It is an arithmetic number, because the mean of its divisors is an integer number (27359545809).

Almost surely, 2^54719091617 is an apocalyptic number.

It is an amenable number.

54719091617 is a deficient number, since it is larger than the sum of its proper divisors (1).

54719091617 is an equidigital number, since it uses as much as digits as its factorization.

54719091617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 50.

The spelling of 54719091617 in words is "fifty-four billion, seven hundred nineteen million, ninety-one thousand, six hundred seventeen".