97150116989 has 2 divisors, whose sum is σ = 97150116990. Its totient is φ = 97150116988.

The previous prime is 97150116949. The next prime is 97150116991. The reversal of 97150116989 is 98961105179.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89600244889 + 7549872100 = 299333^2 + 86890^2 .

It is an emirp because it is prime and its reverse (98961105179) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97150116989 is a prime.

It is a super-2 number, since 2×97150116989² (a number of 23 digits) contains 22 as substring.

Together with 97150116991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97150116949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48575058494 + 48575058495.

It is an arithmetic number, because the mean of its divisors is an integer number (48575058495).

Almost surely, 2^97150116989 is an apocalyptic number.

It is an amenable number.

97150116989 is a deficient number, since it is larger than the sum of its proper divisors (1).

97150116989 is an equidigital number, since it uses as much as digits as its factorization.

97150116989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1224720, while the sum is 56.

The spelling of 97150116989 in words is "ninety-seven billion, one hundred fifty million, one hundred sixteen thousand, nine hundred eighty-nine".