223456743521631 has 48 divisors (see below), whose sum is σ = 337307411331072. Its totient is φ = 142281425404800.

The previous prime is 223456743521623. The next prime is 223456743521653. The reversal of 223456743521631 is 136125347654322.

223456743521631 is a `hidden beast` number, since 2 + 2 + 3 + 4 + 56 + 7 + 4 + 3 + 521 + 63 + 1 = 666.

It is not a de Polignac number, because 223456743521631 - 2³ = 223456743521623 is a prime.

It is a super-5 number, since 5×223456743521631⁵ (a number of 73 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223456743521131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 618400171 + ... + 618761411.

It is an arithmetic number, because the mean of its divisors is an integer number (7027237736064).

Almost surely, 2^{223456743521631} is an apocalyptic number.

223456743521631 is a deficient number, since it is larger than the sum of its proper divisors (113850667809441).

223456743521631 is a wasteful number, since it uses less digits than its factorization.

223456743521631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365724 (or 365721 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 54.

The spelling of 223456743521631 in words is "two hundred twenty-three trillion, four hundred fifty-six billion, seven hundred forty-three million, five hundred twenty-one thousand, six hundred thirty-one".