97153973593 has 2 divisors, whose sum is σ = 97153973594. Its totient is φ = 97153973592.

The previous prime is 97153973563. The next prime is 97153973599. The reversal of 97153973593 is 39537935179.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84892397769 + 12261575824 = 291363^2 + 110732^2 .

It is a cyclic number.

It is not a de Polignac number, because 97153973593 - 2¹³ = 97153965401 is a prime.

It is not a weakly prime, because it can be changed into another prime (97153973599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48576986796 + 48576986797.

It is an arithmetic number, because the mean of its divisors is an integer number (48576986797).

Almost surely, 2^97153973593 is an apocalyptic number.

It is an amenable number.

97153973593 is a deficient number, since it is larger than the sum of its proper divisors (1).

97153973593 is an equidigital number, since it uses as much as digits as its factorization.

97153973593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24111675, while the sum is 61.

The spelling of 97153973593 in words is "ninety-seven billion, one hundred fifty-three million, nine hundred seventy-three thousand, five hundred ninety-three".