14178028649 has 2 divisors, whose sum is σ = 14178028650. Its totient is φ = 14178028648.

The previous prime is 14178028637. The next prime is 14178028717. The reversal of 14178028649 is 94682087141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10009002025 + 4169026624 = 100045^2 + 64568^2 .

It is a cyclic number.

It is not a de Polignac number, because 14178028649 - 2¹⁶ = 14177963113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14178028597 and 14178028606.

It is not a weakly prime, because it can be changed into another prime (14178028619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7089014324 + 7089014325.

It is an arithmetic number, because the mean of its divisors is an integer number (7089014325).

Almost surely, 2^14178028649 is an apocalyptic number.

It is an amenable number.

14178028649 is a deficient number, since it is larger than the sum of its proper divisors (1).

14178028649 is an equidigital number, since it uses as much as digits as its factorization.

14178028649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 14178028649 in words is "fourteen billion, one hundred seventy-eight million, twenty-eight thousand, six hundred forty-nine".