12778484588250 has 64 divisors (see below), whose sum is σ = 32106323628288. Its totient is φ = 3385029000000.

The previous prime is 12778484588249. The next prime is 12778484588293. The reversal of 12778484588250 is 5288548487721.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56303901 + ... + 56530400.

It is an arithmetic number, because the mean of its divisors is an integer number (501661306692).

Almost surely, 2^{12778484588250} is an apocalyptic number.

12778484588250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12778484588250 is an abundant number, since it is smaller than the sum of its proper divisors (19327839040038).

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

12778484588250 is a wasteful number, since it uses less digits than its factorization.

12778484588250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112834472 (or 112834462 counting only the distinct ones).

The product of its (nonzero) digits is 321126400, while the sum is 69.

The spelling of 12778484588250 in words is "twelve trillion, seven hundred seventy-eight billion, four hundred eighty-four million, five hundred eighty-eight thousand, two hundred fifty".