184378680040 has 128 divisors (see below), whose sum is σ = 432937612800. Its totient is φ = 70617980160.

The previous prime is 184378680001. The next prime is 184378680049. The reversal of 184378680040 is 40086873481.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (184378680049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18696631 + ... + 18706489.

It is an arithmetic number, because the mean of its divisors is an integer number (3382325100).

Almost surely, 2^184378680040 is an apocalyptic number.

184378680040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 184378680040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216468806400).

184378680040 is an abundant number, since it is smaller than the sum of its proper divisors (248558932760).

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

184378680040 is a wasteful number, since it uses less digits than its factorization.

184378680040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10127 (or 10123 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 49.

The spelling of 184378680040 in words is "one hundred eighty-four billion, three hundred seventy-eight million, six hundred eighty thousand, forty".