923868845172 has 864 divisors, whose sum is σ = 3164797009920. Its totient is φ = 233323856640.

The previous prime is 923868845171. The next prime is 923868845177. The reversal of 923868845172 is 271548868329.

923868845172 is a `hidden beast` number, since 9 + 2 + 38 + 6 + 8 + 84 + 517 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (923868845171) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 2437648479 + ... + 2437648857.

Almost surely, 2^923868845172 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 923868845172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1582398504960).

923868845172 is an abundant number, since it is smaller than the sum of its proper divisors (2240928164748).

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

923868845172 is a wasteful number, since it uses less digits than its factorization.

923868845172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583 (or 562 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 63.

The spelling of 923868845172 in words is "nine hundred twenty-three billion, eight hundred sixty-eight million, eight hundred forty-five thousand, one hundred seventy-two".