12019710780 has 432 divisors, whose sum is σ = 46556022240. Its totient is φ = 2482099200.

The previous prime is 12019710709. The next prime is 12019710799. The reversal of 12019710780 is 8701791021.

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

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 22217310 + ... + 22217850.

It is an arithmetic number, because the mean of its divisors is an integer number (107768570).

Almost surely, 2^12019710780 is an apocalyptic number.

12019710780 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 12019710780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23278011120).

12019710780 is an abundant number, since it is smaller than the sum of its proper divisors (34536311460).

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

12019710780 is a wasteful number, since it uses less digits than its factorization.

12019710780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810 (or 798 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 36.

The spelling of 12019710780 in words is "twelve billion, nineteen million, seven hundred ten thousand, seven hundred eighty".