1365421234049 has 2 divisors, whose sum is σ = 1365421234050. Its totient is φ = 1365421234048.

The previous prime is 1365421234027. The next prime is 1365421234129. The reversal of 1365421234049 is 9404321245631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1052610337024 + 312810897025 = 1025968^2 + 559295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1365421234049 is a prime.

It is not a weakly prime, because it can be changed into another prime (1365421231049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682710617024 + 682710617025.

It is an arithmetic number, because the mean of its divisors is an integer number (682710617025).

Almost surely, 2^{1365421234049} is an apocalyptic number.

It is an amenable number.

1365421234049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1365421234049 is an equidigital number, since it uses as much as digits as its factorization.

1365421234049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 1365421234049 in words is "one trillion, three hundred sixty-five billion, four hundred twenty-one million, two hundred thirty-four thousand, forty-nine".