84108780000 has 600 divisors, whose sum is σ = 353308242672. Its totient is φ = 19222272000.

The previous prime is 84108779959. The next prime is 84108780023. The reversal of 84108780000 is 8780148.

It is a tau number, because it is divible by the number of its divisors (600).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 11336292 + ... + 11343708.

Almost surely, 2^84108780000 is an apocalyptic number.

84108780000 is a gapful number since it is divisible by the number (80) 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 84108780000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176654121336).

84108780000 is an abundant number, since it is smaller than the sum of its proper divisors (269199462672).

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

84108780000 is an equidigital number, since it uses as much as digits as its factorization.

84108780000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7466 (or 7434 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The spelling of 84108780000 in words is "eighty-four billion, one hundred eight million, seven hundred eighty thousand".