97915617143 has 2 divisors, whose sum is σ = 97915617144. Its totient is φ = 97915617142.

The previous prime is 97915617109. The next prime is 97915617167. The reversal of 97915617143 is 34171651979.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97915617143 - 2³⁴ = 80735747959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97915614143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48957808571 + 48957808572.

It is an arithmetic number, because the mean of its divisors is an integer number (48957808572).

Almost surely, 2^97915617143 is an apocalyptic number.

97915617143 is a deficient number, since it is larger than the sum of its proper divisors (1).

97915617143 is an equidigital number, since it uses as much as digits as its factorization.

97915617143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 53.

The spelling of 97915617143 in words is "ninety-seven billion, nine hundred fifteen million, six hundred seventeen thousand, one hundred forty-three".