9897412096531 has 2 divisors, whose sum is σ = 9897412096532. Its totient is φ = 9897412096530.

The previous prime is 9897412096529. The next prime is 9897412096553. The reversal of 9897412096531 is 1356902147989.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9897412096531 - 2¹ = 9897412096529 is a prime.

It is a super-2 number, since 2×9897412096531² (a number of 27 digits) contains 22 as substring.

Together with 9897412096529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9897412096591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4948706048265 + 4948706048266.

It is an arithmetic number, because the mean of its divisors is an integer number (4948706048266).

It is a 1-persistent number, because it is pandigital, but 2⋅9897412096531 = 19794824193062 is not.

Almost surely, 2^{9897412096531} is an apocalyptic number.

9897412096531 is a deficient number, since it is larger than the sum of its proper divisors (1).

9897412096531 is an equidigital number, since it uses as much as digits as its factorization.

9897412096531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29393280, while the sum is 64.

The spelling of 9897412096531 in words is "nine trillion, eight hundred ninety-seven billion, four hundred twelve million, ninety-six thousand, five hundred thirty-one".