2780864478103 has 2 divisors, whose sum is σ = 2780864478104. Its totient is φ = 2780864478102.

The previous prime is 2780864478079. The next prime is 2780864478109. The reversal of 2780864478103 is 3018744680872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2780864478103 - 2¹⁷ = 2780864347031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2780864478109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1390432239051 + 1390432239052.

It is an arithmetic number, because the mean of its divisors is an integer number (1390432239052).

Almost surely, 2^{2780864478103} is an apocalyptic number.

2780864478103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2780864478103 is an equidigital number, since it uses as much as digits as its factorization.

2780864478103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14450688, while the sum is 58.

The spelling of 2780864478103 in words is "two trillion, seven hundred eighty billion, eight hundred sixty-four million, four hundred seventy-eight thousand, one hundred three".