2777777777473 has 2 divisors, whose sum is σ = 2777777777474. Its totient is φ = 2777777777472.

The previous prime is 2777777777449. The next prime is 2777777777503. The reversal of 2777777777473 is 3747777777772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1485697707664 + 1292080069809 = 1218892^2 + 1136697^2 .

It is a cyclic number.

It is not a de Polignac number, because 2777777777473 - 2¹⁷ = 2777777646401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2777777777393 and 2777777777402.

It is not a weakly prime, because it can be changed into another prime (2777777777443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1388888888736 + 1388888888737.

It is an arithmetic number, because the mean of its divisors is an integer number (1388888888737).

Almost surely, 2^{2777777777473} is an apocalyptic number.

It is an amenable number.

2777777777473 is a deficient number, since it is larger than the sum of its proper divisors (1).

2777777777473 is an equidigital number, since it uses as much as digits as its factorization.

2777777777473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6779405976, while the sum is 79.

The spelling of 2777777777473 in words is "two trillion, seven hundred seventy-seven billion, seven hundred seventy-seven million, seven hundred seventy-seven thousand, four hundred seventy-three".