223968040693 has 8 divisors (see below), whose sum is σ = 243551892312. Its totient is φ = 205096329216.

The previous prime is 223968040651. The next prime is 223968040753. The reversal of 223968040693 is 396040869322.

It can be written as a sum of positive squares in 4 ways, for example, as 64608997489 + 159359043204 = 254183^2 + 399198^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223968040693 - 2³³ = 215378106101 is a prime.

It is a super-2 number, since 2×223968040693² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223968040693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223968040193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178034380 + ... + 178035637.

It is an arithmetic number, because the mean of its divisors is an integer number (30443986539).

Almost surely, 2^223968040693 is an apocalyptic number.

It is an amenable number.

223968040693 is a deficient number, since it is larger than the sum of its proper divisors (19583851619).

223968040693 is a wasteful number, since it uses less digits than its factorization.

223968040693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356070071.

The product of its (nonzero) digits is 3359232, while the sum is 52.

The spelling of 223968040693 in words is "two hundred twenty-three billion, nine hundred sixty-eight million, forty thousand, six hundred ninety-three".