1859428697473 has 2 divisors, whose sum is σ = 1859428697474. Its totient is φ = 1859428697472.

The previous prime is 1859428697447. The next prime is 1859428697501. The reversal of 1859428697473 is 3747968249581.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1849034283264 + 10394414209 = 1359792^2 + 101953^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1859428697473 is a prime.

It is a super-2 number, since 2×1859428697473² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1859428697396 and 1859428697405.

It is not a weakly prime, because it can be changed into another prime (1859428695473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 929714348736 + 929714348737.

It is an arithmetic number, because the mean of its divisors is an integer number (929714348737).

Almost surely, 2^{1859428697473} is an apocalyptic number.

It is an amenable number.

1859428697473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1859428697473 is an equidigital number, since it uses as much as digits as its factorization.

1859428697473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 731566080, while the sum is 73.

The spelling of 1859428697473 in words is "one trillion, eight hundred fifty-nine billion, four hundred twenty-eight million, six hundred ninety-seven thousand, four hundred seventy-three".