879894930619 has 2 divisors, whose sum is σ = 879894930620. Its totient is φ = 879894930618.

The previous prime is 879894930617. The next prime is 879894930641. The reversal of 879894930619 is 916039498978.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 879894930619 - 2¹ = 879894930617 is a prime.

It is a super-2 number, since 2×879894930619² (a number of 25 digits) contains 22 as substring.

Together with 879894930617, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (879894930611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439947465309 + 439947465310.

It is an arithmetic number, because the mean of its divisors is an integer number (439947465310).

Almost surely, 2^879894930619 is an apocalyptic number.

879894930619 is a deficient number, since it is larger than the sum of its proper divisors (1).

879894930619 is an equidigital number, since it uses as much as digits as its factorization.

879894930619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211631616, while the sum is 73.

The spelling of 879894930619 in words is "eight hundred seventy-nine billion, eight hundred ninety-four million, nine hundred thirty thousand, six hundred nineteen".