884919552138 has 24 divisors (see below), whose sum is σ = 1924615918368. Its totient is φ = 293851611432.

The previous prime is 884919552137. The next prime is 884919552169. The reversal of 884919552138 is 831255919488.

884919552138 is a `hidden beast` number, since 8 + 8 + 49 + 1 + 9 + 552 + 1 + 38 = 666.

It is a super-2 number, since 2×884919552138² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (884919552137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93459520 + ... + 93468987.

It is an arithmetic number, because the mean of its divisors is an integer number (80192329932).

Almost surely, 2^884919552138 is an apocalyptic number.

884919552138 is an abundant number, since it is smaller than the sum of its proper divisors (1039696366230).

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

884919552138 is a wasteful number, since it uses less digits than its factorization.

884919552138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186928778 (or 186928775 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 63.

The spelling of 884919552138 in words is "eight hundred eighty-four billion, nine hundred nineteen million, five hundred fifty-two thousand, one hundred thirty-eight".