1223915048928 has 288 divisors, whose sum is σ = 4091570001792. Its totient is φ = 342137779200.

The previous prime is 1223915048911. The next prime is 1223915048953. The reversal of 1223915048928 is 8298405193221.

1223915048928 is a `hidden beast` number, since 1 + 2 + 2 + 3 + 9 + 150 + 489 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71939943 + ... + 71956953.

It is an arithmetic number, because the mean of its divisors is an integer number (14206840284).

Almost surely, 2^{1223915048928} is an apocalyptic number.

1223915048928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223915048928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2045785000896).

1223915048928 is an abundant number, since it is smaller than the sum of its proper divisors (2867654952864).

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

1223915048928 is a wasteful number, since it uses less digits than its factorization.

1223915048928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18798 (or 18787 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 1223915048928 in words is "one trillion, two hundred twenty-three billion, nine hundred fifteen million, forty-eight thousand, nine hundred twenty-eight".