14780147449 has 2 divisors, whose sum is σ = 14780147450. Its totient is φ = 14780147448.

The previous prime is 14780147411. The next prime is 14780147477. The reversal of 14780147449 is 94474108741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13787456400 + 992691049 = 117420^2 + 31507^2 .

It is a cyclic number.

It is not a de Polignac number, because 14780147449 - 2⁹ = 14780146937 is a prime.

It is a super-2 number, since 2×14780147449² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (14780147479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7390073724 + 7390073725.

It is an arithmetic number, because the mean of its divisors is an integer number (7390073725).

Almost surely, 2^14780147449 is an apocalyptic number.

It is an amenable number.

14780147449 is a deficient number, since it is larger than the sum of its proper divisors (1).

14780147449 is an equidigital number, since it uses as much as digits as its factorization.

14780147449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 14780147449 in words is "fourteen billion, seven hundred eighty million, one hundred forty-seven thousand, four hundred forty-nine".