54636909619 has 2 divisors, whose sum is σ = 54636909620. Its totient is φ = 54636909618.

The previous prime is 54636909617. The next prime is 54636909661. The reversal of 54636909619 is 91690963645.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54636909619 - 2¹ = 54636909617 is a prime.

It is a super-2 number, since 2×54636909619² (a number of 22 digits) contains 22 as substring.

Together with 54636909617, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (54636909617) 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, 27318454809 + 27318454810.

It is an arithmetic number, because the mean of its divisors is an integer number (27318454810).

Almost surely, 2^54636909619 is an apocalyptic number.

54636909619 is a deficient number, since it is larger than the sum of its proper divisors (1).

54636909619 is an equidigital number, since it uses as much as digits as its factorization.

54636909619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9447840, while the sum is 58.

The spelling of 54636909619 in words is "fifty-four billion, six hundred thirty-six million, nine hundred nine thousand, six hundred nineteen".