5578778783 has 2 divisors, whose sum is σ = 5578778784. Its totient is φ = 5578778782.

The previous prime is 5578778743. The next prime is 5578778789. The reversal of 5578778783 is 3878778755.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5578778783 - 2⁶ = 5578778719 is a prime.

It is a super-2 number, since 2×5578778783² = 62245545419301922178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5578778789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2789389391 + 2789389392.

It is an arithmetic number, because the mean of its divisors is an integer number (2789389392).

Almost surely, 2^5578778783 is an apocalyptic number.

5578778783 is a deficient number, since it is larger than the sum of its proper divisors (1).

5578778783 is an equidigital number, since it uses as much as digits as its factorization.

5578778783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92198400, while the sum is 65.

The square root of 5578778783 is about 74691.2229314797. Note that the first 3 decimals coincide. The cubic root of 5578778783 is about 1773.5620207654.

The spelling of 5578778783 in words is "five billion, five hundred seventy-eight million, seven hundred seventy-eight thousand, seven hundred eighty-three".