14452943778 has 128 divisors (see below), whose sum is σ = 39576176640. Its totient is φ = 3807259200.

The previous prime is 14452943777. The next prime is 14452943779. The reversal of 14452943778 is 87734925441.

14452943778 is a `hidden beast` number, since 1 + 4 + 4 + 529 + 43 + 7 + 78 = 666.

It is an interprime number because it is at equal distance from previous prime (14452943777) and next prime (14452943779).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (14452943773) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7129201 + ... + 7131227.

It is an arithmetic number, because the mean of its divisors is an integer number (309188880).

Almost surely, 2^14452943778 is an apocalyptic number.

14452943778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 14452943778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19788088320).

14452943778 is an abundant number, since it is smaller than the sum of its proper divisors (25123232862).

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

14452943778 is a wasteful number, since it uses less digits than its factorization.

14452943778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3509 (or 3503 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The spelling of 14452943778 in words is "fourteen billion, four hundred fifty-two million, nine hundred forty-three thousand, seven hundred seventy-eight".