204074697097 has 2 divisors, whose sum is σ = 204074697098. Its totient is φ = 204074697096.

The previous prime is 204074697023. The next prime is 204074697103. The reversal of 204074697097 is 790796470402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177393434761 + 26681262336 = 421181^2 + 163344^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204074697097 is a prime.

It is not a weakly prime, because it can be changed into another prime (204074697397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102037348548 + 102037348549.

It is an arithmetic number, because the mean of its divisors is an integer number (102037348549).

Almost surely, 2^204074697097 is an apocalyptic number.

It is an amenable number.

204074697097 is a deficient number, since it is larger than the sum of its proper divisors (1).

204074697097 is an equidigital number, since it uses as much as digits as its factorization.

204074697097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5334336, while the sum is 55.

The spelling of 204074697097 in words is "two hundred four billion, seventy-four million, six hundred ninety-seven thousand, ninety-seven".