14915449017197 has 2 divisors, whose sum is σ = 14915449017198. Its totient is φ = 14915449017196.

The previous prime is 14915449017193. The next prime is 14915449017247. The reversal of 14915449017197 is 79171094451941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10625637570601 + 4289811446596 = 3259699^2 + 2071186^2 .

It is an emirp because it is prime and its reverse (79171094451941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14915449017197 - 2² = 14915449017193 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14915449017193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7457724508598 + 7457724508599.

It is an arithmetic number, because the mean of its divisors is an integer number (7457724508599).

Almost surely, 2^{14915449017197} is an apocalyptic number.

It is an amenable number.

14915449017197 is a deficient number, since it is larger than the sum of its proper divisors (1).

14915449017197 is an equidigital number, since it uses as much as digits as its factorization.

14915449017197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11430720, while the sum is 62.

The spelling of 14915449017197 in words is "fourteen trillion, nine hundred fifteen billion, four hundred forty-nine million, seventeen thousand, one hundred ninety-seven".