223719923957 has 8 divisors (see below), whose sum is σ = 227406170520. Its totient is φ = 220034280960.

The previous prime is 223719923939. The next prime is 223719923983. The reversal of 223719923957 is 759329917322.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10510555441 + 213209368516 = 102521^2 + 461746^2 .

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

It is not a de Polignac number, because 223719923957 - 2⁶ = 223719923893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223719923896 and 223719923905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223719923657) 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, 629513 + ... + 918545.

It is an arithmetic number, because the mean of its divisors is an integer number (28425771315).

Almost surely, 2^223719923957 is an apocalyptic number.

It is an amenable number.

223719923957 is a deficient number, since it is larger than the sum of its proper divisors (3686246563).

223719923957 is a wasteful number, since it uses less digits than its factorization.

223719923957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301783.

The product of its digits is 12859560, while the sum is 59.

The spelling of 223719923957 in words is "two hundred twenty-three billion, seven hundred nineteen million, nine hundred twenty-three thousand, nine hundred fifty-seven".