13894782355577 has 2 divisors, whose sum is σ = 13894782355578. Its totient is φ = 13894782355576.

The previous prime is 13894782355567. The next prime is 13894782355589. The reversal of 13894782355577 is 77555328749831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7680635788816 + 6214146566761 = 2771396^2 + 2492819^2 .

It is a cyclic number.

It is not a de Polignac number, because 13894782355577 - 2⁴ = 13894782355561 is a prime.

It is not a weakly prime, because it can be changed into another prime (13894782355547) 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, 6947391177788 + 6947391177789.

It is an arithmetic number, because the mean of its divisors is an integer number (6947391177789).

Almost surely, 2^{13894782355577} is an apocalyptic number.

It is an amenable number.

13894782355577 is a deficient number, since it is larger than the sum of its proper divisors (1).

13894782355577 is an equidigital number, since it uses as much as digits as its factorization.

13894782355577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1778112000, while the sum is 74.

The spelling of 13894782355577 in words is "thirteen trillion, eight hundred ninety-four billion, seven hundred eighty-two million, three hundred fifty-five thousand, five hundred seventy-seven".