54080842661 has 2 divisors, whose sum is σ = 54080842662. Its totient is φ = 54080842660.

The previous prime is 54080842657. The next prime is 54080842681. The reversal of 54080842661 is 16624808045.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41440337761 + 12640504900 = 203569^2 + 112430^2 .

It is a cyclic number.

It is not a de Polignac number, because 54080842661 - 2² = 54080842657 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54080842601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27040421330 + 27040421331.

It is an arithmetic number, because the mean of its divisors is an integer number (27040421331).

Almost surely, 2^54080842661 is an apocalyptic number.

It is an amenable number.

54080842661 is a deficient number, since it is larger than the sum of its proper divisors (1).

54080842661 is an equidigital number, since it uses as much as digits as its factorization.

54080842661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 54080842661 in words is "fifty-four billion, eighty million, eight hundred forty-two thousand, six hundred sixty-one".