123783043880 has 16 divisors (see below), whose sum is σ = 278511848820. Its totient is φ = 49513217536.

The previous prime is 123783043873. The next prime is 123783043883. The reversal of 123783043880 is 88340387321.

It can be written as a sum of positive squares in 2 ways, for example, as 110464499044 + 13318544836 = 332362^2 + 115406^2 .

It is not an unprimeable number, because it can be changed into a prime (123783043883) 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 3 ways as a sum of consecutive naturals, for example, 1547288009 + ... + 1547288088.

Almost surely, 2^123783043880 is an apocalyptic number.

123783043880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123783043880 is an abundant number, since it is smaller than the sum of its proper divisors (154728804940).

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

123783043880 is a wasteful number, since it uses less digits than its factorization.

123783043880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3094576108 (or 3094576104 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 123783043880 in words is "one hundred twenty-three billion, seven hundred eighty-three million, forty-three thousand, eight hundred eighty".