54194507849 has 2 divisors, whose sum is σ = 54194507850. Its totient is φ = 54194507848.

The previous prime is 54194507797. The next prime is 54194507867. The reversal of 54194507849 is 94870549145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35231290000 + 18963217849 = 187700^2 + 137707^2 .

It is a cyclic number.

It is not a de Polignac number, because 54194507849 - 2⁸ = 54194507593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54194507794 and 54194507803.

It is not a weakly prime, because it can be changed into another prime (54194507149) 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, 27097253924 + 27097253925.

It is an arithmetic number, because the mean of its divisors is an integer number (27097253925).

Almost surely, 2^54194507849 is an apocalyptic number.

It is an amenable number.

54194507849 is a deficient number, since it is larger than the sum of its proper divisors (1).

54194507849 is an equidigital number, since it uses as much as digits as its factorization.

54194507849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 54194507849 in words is "fifty-four billion, one hundred ninety-four million, five hundred seven thousand, eight hundred forty-nine".