981838112472 has 128 divisors (see below), whose sum is σ = 3118167360000. Its totient is φ = 280415288448.

The previous prime is 981838112441. The next prime is 981838112483. The reversal of 981838112472 is 274211838189.

981838112472 is a `hidden beast` number, since 9 + 8 + 1 + 83 + 81 + 12 + 472 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3773554 + ... + 4025342.

It is an arithmetic number, because the mean of its divisors is an integer number (24360682500).

Almost surely, 2^981838112472 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 981838112472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1559083680000).

981838112472 is an abundant number, since it is smaller than the sum of its proper divisors (2136329247528).

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

981838112472 is a wasteful number, since it uses less digits than its factorization.

981838112472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254390 (or 254380 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 54.

The spelling of 981838112472 in words is "nine hundred eighty-one billion, eight hundred thirty-eight million, one hundred twelve thousand, four hundred seventy-two".