54672462721 has 2 divisors, whose sum is σ = 54672462722. Its totient is φ = 54672462720.

The previous prime is 54672462697. The next prime is 54672462739. The reversal of 54672462721 is 12726427645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54466224400 + 206238321 = 233380^2 + 14361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54672462721 is a prime.

It is not a weakly prime, because it can be changed into another prime (54672462751) 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, 27336231360 + 27336231361.

It is an arithmetic number, because the mean of its divisors is an integer number (27336231361).

Almost surely, 2^54672462721 is an apocalyptic number.

It is an amenable number.

54672462721 is a deficient number, since it is larger than the sum of its proper divisors (1).

54672462721 is an equidigital number, since it uses as much as digits as its factorization.

54672462721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1128960, while the sum is 46.

The spelling of 54672462721 in words is "fifty-four billion, six hundred seventy-two million, four hundred sixty-two thousand, seven hundred twenty-one".