997560519127 has 2 divisors, whose sum is σ = 997560519128. Its totient is φ = 997560519126.

The previous prime is 997560519121. The next prime is 997560519167. The reversal of 997560519127 is 721915065799.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-997560519127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997560519121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498780259563 + 498780259564.

It is an arithmetic number, because the mean of its divisors is an integer number (498780259564).

Almost surely, 2^997560519127 is an apocalyptic number.

997560519127 is a deficient number, since it is larger than the sum of its proper divisors (1).

997560519127 is an equidigital number, since it uses as much as digits as its factorization.

997560519127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10716300, while the sum is 61.

The spelling of 997560519127 in words is "nine hundred ninety-seven billion, five hundred sixty million, five hundred nineteen thousand, one hundred twenty-seven".