223690862917 has 2 divisors, whose sum is σ = 223690862918. Its totient is φ = 223690862916.

The previous prime is 223690862869. The next prime is 223690863017. The reversal of 223690862917 is 719268096322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133498159876 + 90192703041 = 365374^2 + 300321^2 .

It is a cyclic number.

It is not a de Polignac number, because 223690862917 - 2³¹ = 221543379269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223690865917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111845431458 + 111845431459.

It is an arithmetic number, because the mean of its divisors is an integer number (111845431459).

Almost surely, 2^223690862917 is an apocalyptic number.

It is an amenable number.

223690862917 is a deficient number, since it is larger than the sum of its proper divisors (1).

223690862917 is an equidigital number, since it uses as much as digits as its factorization.

223690862917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 223690862917 in words is "two hundred twenty-three billion, six hundred ninety million, eight hundred sixty-two thousand, nine hundred seventeen".