225723772464 has 40 divisors (see below), whose sum is σ = 583151967552. Its totient is φ = 75237099840.

The previous prime is 225723772447. The next prime is 225723772471. The reversal of 225723772464 is 464277327522.

225723772464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 819267 + ... + 1059549.

Almost surely, 2^225723772464 is an apocalyptic number.

225723772464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

225723772464 is an abundant number, since it is smaller than the sum of its proper divisors (357428195088).

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

225723772464 is a wasteful number, since it uses less digits than its factorization.

225723772464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259865 (or 259859 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 51.

The spelling of 225723772464 in words is "two hundred twenty-five billion, seven hundred twenty-three million, seven hundred seventy-two thousand, four hundred sixty-four".