1956485884277 has 2 divisors, whose sum is σ = 1956485884278. Its totient is φ = 1956485884276.

The previous prime is 1956485884259. The next prime is 1956485884343. The reversal of 1956485884277 is 7724885846591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1562515000036 + 393970884241 = 1250006^2 + 627671^2 .

It is a cyclic number.

It is not a de Polignac number, because 1956485884277 - 2¹⁴ = 1956485867893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1956485884247) 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, 978242942138 + 978242942139.

It is an arithmetic number, because the mean of its divisors is an integer number (978242942139).

Almost surely, 2^{1956485884277} is an apocalyptic number.

It is an amenable number.

1956485884277 is a deficient number, since it is larger than the sum of its proper divisors (1).

1956485884277 is an equidigital number, since it uses as much as digits as its factorization.

1956485884277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1083801600, while the sum is 74.

The spelling of 1956485884277 in words is "one trillion, nine hundred fifty-six billion, four hundred eighty-five million, eight hundred eighty-four thousand, two hundred seventy-seven".