16287441678378 has 48 divisors (see below), whose sum is σ = 38004319003560. Its totient is φ = 5011482483072.

The previous prime is 16287441678359. The next prime is 16287441678397. The reversal of 16287441678378 is 87387614478261.

16287441678378 is a `hidden beast` number, since 1 + 6 + 2 + 8 + 74 + 416 + 78 + 3 + 78 = 666.

It is an interprime number because it is at equal distance from previous prime (16287441678359) and next prime (16287441678397).

It can be written as a sum of positive squares in 4 ways, for example, as 3022163202969 + 13265278475409 = 1738437^2 + 3642153^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58748508 + ... + 59025096.

Almost surely, 2^{16287441678378} is an apocalyptic number.

16287441678378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16287441678378 is an abundant number, since it is smaller than the sum of its proper divisors (21716877325182).

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

16287441678378 is a wasteful number, since it uses less digits than its factorization.

16287441678378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528263 (or 528260 counting only the distinct ones).

The product of its digits is 606928896, while the sum is 72.

The spelling of 16287441678378 in words is "sixteen trillion, two hundred eighty-seven billion, four hundred forty-one million, six hundred seventy-eight thousand, three hundred seventy-eight".