870009661333 has 2 divisors, whose sum is σ = 870009661334. Its totient is φ = 870009661332.

The previous prime is 870009661289. The next prime is 870009661463. The reversal of 870009661333 is 333166900078.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 859063898449 + 10945762884 = 926857^2 + 104622^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-870009661333 is a prime.

It is a super-2 number, since 2×870009661333² (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 (870009664333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435004830666 + 435004830667.

It is an arithmetic number, because the mean of its divisors is an integer number (435004830667).

Almost surely, 2^870009661333 is an apocalyptic number.

It is an amenable number.

870009661333 is a deficient number, since it is larger than the sum of its proper divisors (1).

870009661333 is an equidigital number, since it uses as much as digits as its factorization.

870009661333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 46.

The spelling of 870009661333 in words is "eight hundred seventy billion, nine million, six hundred sixty-one thousand, three hundred thirty-three".