14442881778 has 48 divisors (see below), whose sum is σ = 33851301120. Its totient is φ = 4424019552.

The previous prime is 14442881771. The next prime is 14442881801. The reversal of 14442881778 is 87718824441.

14442881778 is a `hidden beast` number, since 1 + 44 + 428 + 8 + 177 + 8 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (14442881771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86208 + ... + 190571.

It is an arithmetic number, because the mean of its divisors is an integer number (705235440).

Almost surely, 2^14442881778 is an apocalyptic number.

14442881778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

14442881778 is an abundant number, since it is smaller than the sum of its proper divisors (19408419342).

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

14442881778 is a wasteful number, since it uses less digits than its factorization.

14442881778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277023 (or 277020 counting only the distinct ones).

The product of its digits is 3211264, while the sum is 54.

The spelling of 14442881778 in words is "fourteen billion, four hundred forty-two million, eight hundred eighty-one thousand, seven hundred seventy-eight".