654247841791 has 2 divisors, whose sum is σ = 654247841792. Its totient is φ = 654247841790.

The previous prime is 654247841747. The next prime is 654247841833. The reversal of 654247841791 is 197148742456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 654247841791 - 2¹¹ = 654247839743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654247841701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327123920895 + 327123920896.

It is an arithmetic number, because the mean of its divisors is an integer number (327123920896).

Almost surely, 2^654247841791 is an apocalyptic number.

654247841791 is a deficient number, since it is larger than the sum of its proper divisors (1).

654247841791 is an equidigital number, since it uses as much as digits as its factorization.

654247841791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13547520, while the sum is 58.

The spelling of 654247841791 in words is "six hundred fifty-four billion, two hundred forty-seven million, eight hundred forty-one thousand, seven hundred ninety-one".