123784846056 has 80 divisors (see below), whose sum is σ = 351595585440. Its totient is φ = 40680450720.

The previous prime is 123784846051. The next prime is 123784846069. The reversal of 123784846056 is 650648487321.

It is a happy number.

123784846056 is a `hidden beast` number, since 1 + 23 + 7 + 8 + 4 + 8 + 4 + 605 + 6 = 666.

It is a super-2 number, since 2×123784846056² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 123784845993 and 123784846011.

It is not an unprimeable number, because it can be changed into a prime (123784846051) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 1299246 + ... + 1391261.

It is an arithmetic number, because the mean of its divisors is an integer number (4394944818).

Almost surely, 2^123784846056 is an apocalyptic number.

It is an amenable number.

123784846056 is an abundant number, since it is smaller than the sum of its proper divisors (227810739384).

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

123784846056 is a wasteful number, since it uses less digits than its factorization.

123784846056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2690596 (or 2690583 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 123784846056 in words is "one hundred twenty-three billion, seven hundred eighty-four million, eight hundred forty-six thousand, fifty-six".