5555557777793 has 2 divisors, whose sum is σ = 5555557777794. Its totient is φ = 5555557777792.

The previous prime is 5555557777753. The next prime is 5555557777799. The reversal of 5555557777793 is 3977777555555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5311213424449 + 244344353344 = 2304607^2 + 494312^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5555557777793 is a prime.

It is not a weakly prime, because it can be changed into another prime (5555557777799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777778888896 + 2777778888897.

It is an arithmetic number, because the mean of its divisors is an integer number (2777778888897).

Almost surely, 2^{5555557777793} is an apocalyptic number.

It is an amenable number.

5555557777793 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555557777793 is an equidigital number, since it uses as much as digits as its factorization.

5555557777793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7090453125, while the sum is 77.

The spelling of 5555557777793 in words is "five trillion, five hundred fifty-five billion, five hundred fifty-seven million, seven hundred seventy-seven thousand, seven hundred ninety-three".