870133816249 has 2 divisors, whose sum is σ = 870133816250. Its totient is φ = 870133816248.

The previous prime is 870133816213. The next prime is 870133816283. The reversal of 870133816249 is 942618331078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 868288512400 + 1845303849 = 931820^2 + 42957^2 .

It is a cyclic number.

It is not a de Polignac number, because 870133816249 - 2⁹ = 870133815737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 870133816196 and 870133816205.

It is not a weakly prime, because it can be changed into another prime (870133816049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435066908124 + 435066908125.

It is an arithmetic number, because the mean of its divisors is an integer number (435066908125).

Almost surely, 2^870133816249 is an apocalyptic number.

It is an amenable number.

870133816249 is a deficient number, since it is larger than the sum of its proper divisors (1).

870133816249 is an equidigital number, since it uses as much as digits as its factorization.

870133816249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 870133816249 in words is "eight hundred seventy billion, one hundred thirty-three million, eight hundred sixteen thousand, two hundred forty-nine".