54660274861 has 2 divisors, whose sum is σ = 54660274862. Its totient is φ = 54660274860.

The previous prime is 54660274859. The next prime is 54660274901. The reversal of 54660274861 is 16847206645.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31157545225 + 23502729636 = 176515^2 + 153306^2 .

It is a cyclic number.

It is not a de Polignac number, because 54660274861 - 2¹ = 54660274859 is a prime.

Together with 54660274859, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54660274561) 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, 27330137430 + 27330137431.

It is an arithmetic number, because the mean of its divisors is an integer number (27330137431).

Almost surely, 2^54660274861 is an apocalyptic number.

It is an amenable number.

54660274861 is a deficient number, since it is larger than the sum of its proper divisors (1).

54660274861 is an equidigital number, since it uses as much as digits as its factorization.

54660274861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 54660274861 in words is "fifty-four billion, six hundred sixty million, two hundred seventy-four thousand, eight hundred sixty-one".