223629891385 has 8 divisors (see below), whose sum is σ = 277609520520. Its totient is φ = 172734812544.

The previous prime is 223629891383. The next prime is 223629891413. The reversal of 223629891385 is 583198926322.

It can be written as a sum of positive squares in 4 ways, for example, as 28241138601 + 195388752784 = 168051^2 + 442028^2 .

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 223629891385 - 2¹ = 223629891383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223629891383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 771137412 + ... + 771137701.

It is an arithmetic number, because the mean of its divisors is an integer number (34701190065).

Almost surely, 2^223629891385 is an apocalyptic number.

It is an amenable number.

223629891385 is a deficient number, since it is larger than the sum of its proper divisors (53979629135).

223629891385 is a wasteful number, since it uses less digits than its factorization.

223629891385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542275147.

The product of its digits is 11197440, while the sum is 58.

The spelling of 223629891385 in words is "two hundred twenty-three billion, six hundred twenty-nine million, eight hundred ninety-one thousand, three hundred eighty-five".