1297156895017 has 16 divisors (see below), whose sum is σ = 1370608357888. Its totient is φ = 1225700864640.

The previous prime is 1297156894993. The next prime is 1297156895081. The reversal of 1297156895017 is 7105986517921.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1297156895017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1297156895117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3771583 + ... + 4101115.

It is an arithmetic number, because the mean of its divisors is an integer number (85663022368).

Almost surely, 2^{1297156895017} is an apocalyptic number.

It is an amenable number.

1297156895017 is a deficient number, since it is larger than the sum of its proper divisors (73451462871).

1297156895017 is a wasteful number, since it uses less digits than its factorization.

1297156895017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332560.

The product of its (nonzero) digits is 9525600, while the sum is 61.

The spelling of 1297156895017 in words is "one trillion, two hundred ninety-seven billion, one hundred fifty-six million, eight hundred ninety-five thousand, seventeen".