123543563772 has 48 divisors (see below), whose sum is σ = 293332878720. Its totient is φ = 40458530112.

The previous prime is 123543563749. The next prime is 123543563777. The reversal of 123543563772 is 277365345321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123543563777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1127898 + ... + 1232574.

It is an arithmetic number, because the mean of its divisors is an integer number (6111101640).

Almost surely, 2^123543563772 is an apocalyptic number.

123543563772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123543563772 is an abundant number, since it is smaller than the sum of its proper divisors (169789314948).

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

123543563772 is a wasteful number, since it uses less digits than its factorization.

123543563772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106410 (or 106408 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 48.

The spelling of 123543563772 in words is "one hundred twenty-three billion, five hundred forty-three million, five hundred sixty-three thousand, seven hundred seventy-two".