923189649312 has 576 divisors, whose sum is σ = 2925567590400. Its totient is φ = 254062448640.

The previous prime is 923189649281. The next prime is 923189649329. The reversal of 923189649312 is 213946981329.

923189649312 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3406603737 + ... + 3406604007.

It is an arithmetic number, because the mean of its divisors is an integer number (5079110400).

Almost surely, 2^923189649312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 923189649312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1462783795200).

923189649312 is an abundant number, since it is smaller than the sum of its proper divisors (2002377941088).

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

923189649312 is a wasteful number, since it uses less digits than its factorization.

923189649312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 554 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 57.

The spelling of 923189649312 in words is "nine hundred twenty-three billion, one hundred eighty-nine million, six hundred forty-nine thousand, three hundred twelve".