2780505500323 has 2 divisors, whose sum is σ = 2780505500324. Its totient is φ = 2780505500322.

The previous prime is 2780505500239. The next prime is 2780505500483. The reversal of 2780505500323 is 3230055050872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2780505500323 - 2¹³ = 2780505492131 is a prime.

It is not a weakly prime, because it can be changed into another prime (2780505500723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1390252750161 + 1390252750162.

It is an arithmetic number, because the mean of its divisors is an integer number (1390252750162).

Almost surely, 2^{2780505500323} is an apocalyptic number.

2780505500323 is a deficient number, since it is larger than the sum of its proper divisors (1).

2780505500323 is an equidigital number, since it uses as much as digits as its factorization.

2780505500323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 2780505500323 in words is "two trillion, seven hundred eighty billion, five hundred five million, five hundred thousand, three hundred twenty-three".