545999906191919 has 2 divisors, whose sum is σ = 545999906191920. Its totient is φ = 545999906191918.

The previous prime is 545999906191843. The next prime is 545999906191937. The reversal of 545999906191919 is 919191609999545.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545999906191919 is a prime.

It is a super-2 number, since 2×545999906191919² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545999906197919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272999953095959 + 272999953095960.

It is an arithmetic number, because the mean of its divisors is an integer number (272999953095960).

Almost surely, 2^{545999906191919} is an apocalyptic number.

545999906191919 is a deficient number, since it is larger than the sum of its proper divisors (1).

545999906191919 is an equidigital number, since it uses as much as digits as its factorization.

545999906191919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2869781400, while the sum is 86.

The spelling of 545999906191919 in words is "five hundred forty-five trillion, nine hundred ninety-nine billion, nine hundred six million, one hundred ninety-one thousand, nine hundred nineteen".