14378778681348 has 48 divisors (see below), whose sum is σ = 33635875625856. Its totient is φ = 4780737964800.

The previous prime is 14378778681277. The next prime is 14378778681349. The reversal of 14378778681348 is 84318687787341.

It is a self number, because there is not a number n which added to its sum of digits gives 14378778681348.

It is not an unprimeable number, because it can be changed into a prime (14378778681349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10209490 + ... + 11532182.

It is an arithmetic number, because the mean of its divisors is an integer number (700747408872).

Almost surely, 2^{14378778681348} is an apocalyptic number.

It is an amenable number.

14378778681348 is an abundant number, since it is smaller than the sum of its proper divisors (19257096944508).

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

14378778681348 is a wasteful number, since it uses less digits than its factorization.

14378778681348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325004 (or 1325002 counting only the distinct ones).

The product of its digits is 1213857792, while the sum is 75.

The spelling of 14378778681348 in words is "fourteen trillion, three hundred seventy-eight billion, seven hundred seventy-eight million, six hundred eighty-one thousand, three hundred forty-eight".