223828577887251 has 4 divisors (see below), whose sum is σ = 298438103849672. Its totient is φ = 149219051924832.

The previous prime is 223828577887169. The next prime is 223828577887337. The reversal of 223828577887251 is 152788775828322.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 223828577887251 - 2¹¹ = 223828577885203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223828577877251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37304762981206 + ... + 37304762981211.

It is an arithmetic number, because the mean of its divisors is an integer number (74609525962418).

Almost surely, 2^{223828577887251} is an apocalyptic number.

223828577887251 is a deficient number, since it is larger than the sum of its proper divisors (74609525962421).

223828577887251 is an equidigital number, since it uses as much as digits as its factorization.

223828577887251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74609525962420.

The product of its digits is 1685913600, while the sum is 75.

The spelling of 223828577887251 in words is "two hundred twenty-three trillion, eight hundred twenty-eight billion, five hundred seventy-seven million, eight hundred eighty-seven thousand, two hundred fifty-one".