109578794893 has 2 divisors, whose sum is σ = 109578794894. Its totient is φ = 109578794892.

The previous prime is 109578794879. The next prime is 109578794957. The reversal of 109578794893 is 398497875901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77728324804 + 31850470089 = 278798^2 + 178467^2 .

It is a cyclic number.

It is not a de Polignac number, because 109578794893 - 2⁵ = 109578794861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109578794993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54789397446 + 54789397447.

It is an arithmetic number, because the mean of its divisors is an integer number (54789397447).

Almost surely, 2^109578794893 is an apocalyptic number.

It is an amenable number.

109578794893 is a deficient number, since it is larger than the sum of its proper divisors (1).

109578794893 is an equidigital number, since it uses as much as digits as its factorization.

109578794893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 137168640, while the sum is 70.

The spelling of 109578794893 in words is "one hundred nine billion, five hundred seventy-eight million, seven hundred ninety-four thousand, eight hundred ninety-three".