78892898305 has 32 divisors (see below), whose sum is σ = 103487696928. Its totient is φ = 57388800000.

The previous prime is 78892898269. The next prime is 78892898321. The reversal of 78892898305 is 50389829887.

It can be written as a sum of positive squares in 16 ways, for example, as 98724096 + 78794174209 = 9936^2 + 280703^2 .

It is not a de Polignac number, because 78892898305 - 2⁷ = 78892898177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1262805 + ... + 1323805.

It is an arithmetic number, because the mean of its divisors is an integer number (3233990529).

Almost surely, 2^78892898305 is an apocalyptic number.

It is an amenable number.

78892898305 is a deficient number, since it is larger than the sum of its proper divisors (24594798623).

78892898305 is a wasteful number, since it uses less digits than its factorization.

78892898305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61317.

The product of its (nonzero) digits is 69672960, while the sum is 67.

The spelling of 78892898305 in words is "seventy-eight billion, eight hundred ninety-two million, eight hundred ninety-eight thousand, three hundred five".