1428585872873 has 2 divisors, whose sum is σ = 1428585872874. Its totient is φ = 1428585872872.

The previous prime is 1428585872863. The next prime is 1428585872927. The reversal of 1428585872873 is 3782785858241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1376616463849 + 51969409024 = 1173293^2 + 227968^2 .

It is a cyclic number.

It is not a de Polignac number, because 1428585872873 - 2⁸ = 1428585872617 is a prime.

It is a super-2 number, since 2×1428585872873² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1428585872863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714292936436 + 714292936437.

It is an arithmetic number, because the mean of its divisors is an integer number (714292936437).

Almost surely, 2^{1428585872873} is an apocalyptic number.

It is an amenable number.

1428585872873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1428585872873 is an equidigital number, since it uses as much as digits as its factorization.

1428585872873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 240844800, while the sum is 68.

The spelling of 1428585872873 in words is "one trillion, four hundred twenty-eight billion, five hundred eighty-five million, eight hundred seventy-two thousand, eight hundred seventy-three".