97161253823 has 2 divisors, whose sum is σ = 97161253824. Its totient is φ = 97161253822.

The previous prime is 97161253811. The next prime is 97161253859. The reversal of 97161253823 is 32835216179.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97161253823 - 2²⁴ = 97144476607 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97161253873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48580626911 + 48580626912.

It is an arithmetic number, because the mean of its divisors is an integer number (48580626912).

Almost surely, 2^97161253823 is an apocalyptic number.

97161253823 is a deficient number, since it is larger than the sum of its proper divisors (1).

97161253823 is an equidigital number, since it uses as much as digits as its factorization.

97161253823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 47.

The spelling of 97161253823 in words is "ninety-seven billion, one hundred sixty-one million, two hundred fifty-three thousand, eight hundred twenty-three".