879533397817 has 2 divisors, whose sum is σ = 879533397818. Its totient is φ = 879533397816.

The previous prime is 879533397811. The next prime is 879533397871. The reversal of 879533397817 is 718793335978.

It is a happy number.

Together with next prime (879533397871) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 744071859216 + 135461538601 = 862596^2 + 368051^2 .

It is a cyclic number.

It is not a de Polignac number, because 879533397817 - 2¹⁵ = 879533365049 is a prime.

It is a super-3 number, since 3×879533397817³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (879533397811) 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, 439766698908 + 439766698909.

It is an arithmetic number, because the mean of its divisors is an integer number (439766698909).

Almost surely, 2^879533397817 is an apocalyptic number.

It is an amenable number.

879533397817 is a deficient number, since it is larger than the sum of its proper divisors (1).

879533397817 is an equidigital number, since it uses as much as digits as its factorization.

879533397817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240045120, while the sum is 70.

The spelling of 879533397817 in words is "eight hundred seventy-nine billion, five hundred thirty-three million, three hundred ninety-seven thousand, eight hundred seventeen".