14501978069 has 2 divisors, whose sum is σ = 14501978070. Its totient is φ = 14501978068.

The previous prime is 14501978053. The next prime is 14501978077. The reversal of 14501978069 is 96087910541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14157430225 + 344547844 = 118985^2 + 18562^2 .

It is a cyclic number.

It is not a de Polignac number, because 14501978069 - 2⁴ = 14501978053 is a prime.

It is a super-2 number, since 2×14501978069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14501978089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7250989034 + 7250989035.

It is an arithmetic number, because the mean of its divisors is an integer number (7250989035).

Almost surely, 2^14501978069 is an apocalyptic number.

It is an amenable number.

14501978069 is a deficient number, since it is larger than the sum of its proper divisors (1).

14501978069 is an equidigital number, since it uses as much as digits as its factorization.

14501978069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 50.

The spelling of 14501978069 in words is "fourteen billion, five hundred one million, nine hundred seventy-eight thousand, sixty-nine".