546641691787 has 2 divisors, whose sum is σ = 546641691788. Its totient is φ = 546641691786.

The previous prime is 546641691767. The next prime is 546641691851. The reversal of 546641691787 is 787196146645.

It is an a-pointer prime, because the next prime (546641691851) can be obtained adding 546641691787 to its sum of digits (64).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-546641691787 is a prime.

It is not a weakly prime, because it can be changed into another prime (546641691737) 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, 273320845893 + 273320845894.

It is an arithmetic number, because the mean of its divisors is an integer number (273320845894).

Almost surely, 2^546641691787 is an apocalyptic number.

546641691787 is a deficient number, since it is larger than the sum of its proper divisors (1).

546641691787 is an equidigital number, since it uses as much as digits as its factorization.

546641691787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60963840, while the sum is 64.

The spelling of 546641691787 in words is "five hundred forty-six billion, six hundred forty-one million, six hundred ninety-one thousand, seven hundred eighty-seven".