1864350604709 has 2 divisors, whose sum is σ = 1864350604710. Its totient is φ = 1864350604708.

The previous prime is 1864350604679. The next prime is 1864350604751. The reversal of 1864350604709 is 9074060534681.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1663189384609 + 201161220100 = 1289647^2 + 448510^2 .

It is a cyclic number.

It is not a de Polignac number, because 1864350604709 - 2⁸ = 1864350604453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1864350604799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 932175302354 + 932175302355.

It is an arithmetic number, because the mean of its divisors is an integer number (932175302355).

Almost surely, 2^{1864350604709} is an apocalyptic number.

It is an amenable number.

1864350604709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1864350604709 is an equidigital number, since it uses as much as digits as its factorization.

1864350604709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 1864350604709 in words is "one trillion, eight hundred sixty-four billion, three hundred fifty million, six hundred four thousand, seven hundred nine".