123783435732 has 48 divisors (see below), whose sum is σ = 315599320512. Its totient is φ = 37448916480.

The previous prime is 123783435709. The next prime is 123783435827. The reversal of 123783435732 is 237534387321.

It is a congruent number.

It is an unprimeable number.

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, 683973 + ... + 845804.

It is an arithmetic number, because the mean of its divisors is an integer number (6574985844).

Almost surely, 2^123783435732 is an apocalyptic number.

123783435732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123783435732 is an abundant number, since it is smaller than the sum of its proper divisors (191815884780).

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

123783435732 is a wasteful number, since it uses less digits than its factorization.

123783435732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530408 (or 1530406 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 48.

The spelling of 123783435732 in words is "one hundred twenty-three billion, seven hundred eighty-three million, four hundred thirty-five thousand, seven hundred thirty-two".