1361780657119 has 2 divisors, whose sum is σ = 1361780657120. Its totient is φ = 1361780657118.

The previous prime is 1361780657057. The next prime is 1361780657179. The reversal of 1361780657119 is 9117560871631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1361780657119 - 2¹⁷ = 1361780526047 is a prime.

It is a super-2 number, since 2×1361780657119² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1361780657119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361780657179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680890328559 + 680890328560.

It is an arithmetic number, because the mean of its divisors is an integer number (680890328560).

Almost surely, 2^{1361780657119} is an apocalyptic number.

1361780657119 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361780657119 is an equidigital number, since it uses as much as digits as its factorization.

1361780657119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120, while the sum is 55.

The spelling of 1361780657119 in words is "one trillion, three hundred sixty-one billion, seven hundred eighty million, six hundred fifty-seven thousand, one hundred nineteen".