14278412146 has 16 divisors (see below), whose sum is σ = 21682297728. Its totient is φ = 7051032400.

The previous prime is 14278412119. The next prime is 14278412153. The reversal of 14278412146 is 64121487241.

It is a happy number.

It is a super-2 number, since 2×14278412146² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 14278412099 and 14278412108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623031 + ... + 645541.

It is an arithmetic number, because the mean of its divisors is an integer number (1355143608).

Almost surely, 2^14278412146 is an apocalyptic number.

14278412146 is a deficient number, since it is larger than the sum of its proper divisors (7403885582).

14278412146 is a wasteful number, since it uses less digits than its factorization.

14278412146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26417.

The product of its digits is 86016, while the sum is 40.

Adding to 14278412146 its reverse (64121487241), we get a palindrome (78399899387).

The spelling of 14278412146 in words is "fourteen billion, two hundred seventy-eight million, four hundred twelve thousand, one hundred forty-six".