5578778743 has 2 divisors, whose sum is σ = 5578778744. Its totient is φ = 5578778742.

The previous prime is 5578778741. The next prime is 5578778783. The reversal of 5578778743 is 3478778755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5578778743 - 2¹ = 5578778741 is a prime.

It is a super-2 number, since 2×5578778743² = 62245544526697320098, which contains 22 as substring.

Together with 5578778741, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5578778741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2789389371 + 2789389372.

It is an arithmetic number, because the mean of its divisors is an integer number (2789389372).

Almost surely, 2^5578778743 is an apocalyptic number.

5578778743 is a deficient number, since it is larger than the sum of its proper divisors (1).

5578778743 is an equidigital number, since it uses as much as digits as its factorization.

5578778743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46099200, while the sum is 61.

The square root of 5578778743 is about 74691.2226637106. Note that the first 3 decimals coincide. The cubic root of 5578778743 is about 1773.5620165266.

The spelling of 5578778743 in words is "five billion, five hundred seventy-eight million, seven hundred seventy-eight thousand, seven hundred forty-three".