923384578728 has 128 divisors (see below), whose sum is σ = 2355218841600. Its totient is φ = 301612253184.

The previous prime is 923384578717. The next prime is 923384578751. The reversal of 923384578728 is 827875483329.

It is a super-3 number, since 3×923384578728³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 528553551 + ... + 528555297.

It is an arithmetic number, because the mean of its divisors is an integer number (18400147200).

Almost surely, 2^923384578728 is an apocalyptic number.

It is an amenable number.

923384578728 is an abundant number, since it is smaller than the sum of its proper divisors (1431834262872).

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

923384578728 is a wasteful number, since it uses less digits than its factorization.

923384578728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3359 (or 3355 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 66.

The spelling of 923384578728 in words is "nine hundred twenty-three billion, three hundred eighty-four million, five hundred seventy-eight thousand, seven hundred twenty-eight".