1896606898469 has 2 divisors, whose sum is σ = 1896606898470. Its totient is φ = 1896606898468.

The previous prime is 1896606898453. The next prime is 1896606898489. The reversal of 1896606898469 is 9648986066981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1230905929444 + 665700969025 = 1109462^2 + 815905^2 .

It is a cyclic number.

It is not a de Polignac number, because 1896606898469 - 2⁴ = 1896606898453 is a prime.

It is a super-2 number, since 2×1896606898469² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1896606898393 and 1896606898402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1896606898429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 948303449234 + 948303449235.

It is an arithmetic number, because the mean of its divisors is an integer number (948303449235).

Almost surely, 2^{1896606898469} is an apocalyptic number.

It is an amenable number.

1896606898469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1896606898469 is an equidigital number, since it uses as much as digits as its factorization.

1896606898469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1934917632, while the sum is 80.

The spelling of 1896606898469 in words is "one trillion, eight hundred ninety-six billion, six hundred six million, eight hundred ninety-eight thousand, four hundred sixty-nine".