1864648464697 has 2 divisors, whose sum is σ = 1864648464698. Its totient is φ = 1864648464696.

The previous prime is 1864648464677. The next prime is 1864648464703. The reversal of 1864648464697 is 7964648464681.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1253349659961 + 611298804736 = 1119531^2 + 781856^2 .

It is a cyclic number.

It is not a de Polignac number, because 1864648464697 - 2³¹ = 1862500981049 is a prime.

It is not a weakly prime, because it can be changed into another prime (1864648464667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 932324232348 + 932324232349.

It is an arithmetic number, because the mean of its divisors is an integer number (932324232349).

Almost surely, 2^{1864648464697} is an apocalyptic number.

It is an amenable number.

1864648464697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1864648464697 is an equidigital number, since it uses as much as digits as its factorization.

1864648464697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1337720832, while the sum is 73.

The spelling of 1864648464697 in words is "one trillion, eight hundred sixty-four billion, six hundred forty-eight million, four hundred sixty-four thousand, six hundred ninety-seven".