223847394672 has 80 divisors (see below), whose sum is σ = 630969972480. Its totient is φ = 67818854400.

The previous prime is 223847394671. The next prime is 223847394677. The reversal of 223847394672 is 276493748322.

It is a super-2 number, since 2×223847394672² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223847394671) 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 15 ways as a sum of consecutive naturals, for example, 2748229 + ... + 2828507.

It is an arithmetic number, because the mean of its divisors is an integer number (7887124656).

Almost surely, 2^223847394672 is an apocalyptic number.

223847394672 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

223847394672 is an abundant number, since it is smaller than the sum of its proper divisors (407122577808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223847394672 is a wasteful number, since it uses less digits than its factorization.

223847394672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85582 (or 85576 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 57.

The spelling of 223847394672 in words is "two hundred twenty-three billion, eight hundred forty-seven million, three hundred ninety-four thousand, six hundred seventy-two".