870142775069 has 2 divisors, whose sum is σ = 870142775070. Its totient is φ = 870142775068.

The previous prime is 870142775039. The next prime is 870142775147. The reversal of 870142775069 is 960577241078.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 862738172569 + 7404602500 = 928837^2 + 86050^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-870142775069 is a prime.

It is a super-2 number, since 2×870142775069² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870142775039) 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, 435071387534 + 435071387535.

It is an arithmetic number, because the mean of its divisors is an integer number (435071387535).

Almost surely, 2^870142775069 is an apocalyptic number.

It is an amenable number.

870142775069 is a deficient number, since it is larger than the sum of its proper divisors (1).

870142775069 is an equidigital number, since it uses as much as digits as its factorization.

870142775069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5927040, while the sum is 56.

The spelling of 870142775069 in words is "eight hundred seventy billion, one hundred forty-two million, seven hundred seventy-five thousand, sixty-nine".