14297768981 has 2 divisors, whose sum is σ = 14297768982. Its totient is φ = 14297768980.

The previous prime is 14297768971. The next prime is 14297768987. The reversal of 14297768981 is 18986779241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8234655025 + 6063113956 = 90745^2 + 77866^2 .

It is a cyclic number.

It is not a de Polignac number, because 14297768981 - 2²² = 14293574677 is a prime.

It is a super-2 number, since 2×14297768981² (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 (14297768987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7148884490 + 7148884491.

It is an arithmetic number, because the mean of its divisors is an integer number (7148884491).

Almost surely, 2^14297768981 is an apocalyptic number.

It is an amenable number.

14297768981 is a deficient number, since it is larger than the sum of its proper divisors (1).

14297768981 is an equidigital number, since it uses as much as digits as its factorization.

14297768981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12192768, while the sum is 62.

The spelling of 14297768981 in words is "fourteen billion, two hundred ninety-seven million, seven hundred sixty-eight thousand, nine hundred eighty-one".