1361974270777 has 2 divisors, whose sum is σ = 1361974270778. Its totient is φ = 1361974270776.

The previous prime is 1361974270759. The next prime is 1361974270801. The reversal of 1361974270777 is 7770724791631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1089718858816 + 272255411961 = 1043896^2 + 521781^2 .

It is a cyclic number.

It is not a de Polignac number, because 1361974270777 - 2⁷ = 1361974270649 is a prime.

It is not a weakly prime, because it can be changed into another prime (1361974270747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680987135388 + 680987135389.

It is an arithmetic number, because the mean of its divisors is an integer number (680987135389).

Almost surely, 2^{1361974270777} is an apocalyptic number.

It is an amenable number.

1361974270777 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361974270777 is an equidigital number, since it uses as much as digits as its factorization.

1361974270777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21781872, while the sum is 61.

The spelling of 1361974270777 in words is "one trillion, three hundred sixty-one billion, nine hundred seventy-four million, two hundred seventy thousand, seven hundred seventy-seven".