698023822879 has 16 divisors (see below), whose sum is σ = 745181268480. Its totient is φ = 651910079520.

The previous prime is 698023822861. The next prime is 698023822883. The reversal of 698023822879 is 978228320896.

It is a cyclic number.

It is not a de Polignac number, because 698023822879 - 2⁹ = 698023822367 is a prime.

It is a super-2 number, since 2×698023822879² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 698023822879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698023822889) 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 in 15 ways as a sum of consecutive naturals, for example, 20734849 + ... + 20768485.

It is an arithmetic number, because the mean of its divisors is an integer number (46573829280).

Almost surely, 2^698023822879 is an apocalyptic number.

698023822879 is a deficient number, since it is larger than the sum of its proper divisors (47157445601).

698023822879 is a wasteful number, since it uses less digits than its factorization.

698023822879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49110.

The product of its (nonzero) digits is 41803776, while the sum is 64.

The spelling of 698023822879 in words is "six hundred ninety-eight billion, twenty-three million, eight hundred twenty-two thousand, eight hundred seventy-nine".