2578994380723 has 2 divisors, whose sum is σ = 2578994380724. Its totient is φ = 2578994380722.

The previous prime is 2578994380717. The next prime is 2578994380819. The reversal of 2578994380723 is 3270834998752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2578994380723 - 2⁵ = 2578994380691 is a prime.

It is not a weakly prime, because it can be changed into another prime (2578994380223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1289497190361 + 1289497190362.

It is an arithmetic number, because the mean of its divisors is an integer number (1289497190362).

Almost surely, 2^{2578994380723} is an apocalyptic number.

2578994380723 is a deficient number, since it is larger than the sum of its proper divisors (1).

2578994380723 is an equidigital number, since it uses as much as digits as its factorization.

2578994380723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 182891520, while the sum is 67.

The spelling of 2578994380723 in words is "two trillion, five hundred seventy-eight billion, nine hundred ninety-four million, three hundred eighty thousand, seven hundred twenty-three".