204060136897 has 4 divisors (see below), whose sum is σ = 208805721520. Its totient is φ = 199314552276.

The previous prime is 204060136883. The next prime is 204060136901. The reversal of 204060136897 is 798631060402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204060136897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204060136817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2372792247 + ... + 2372792332.

It is an arithmetic number, because the mean of its divisors is an integer number (52201430380).

Almost surely, 2^204060136897 is an apocalyptic number.

It is an amenable number.

204060136897 is a deficient number, since it is larger than the sum of its proper divisors (4745584623).

204060136897 is an equidigital number, since it uses as much as digits as its factorization.

204060136897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4745584622.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 204060136897 in words is "two hundred four billion, sixty million, one hundred thirty-six thousand, eight hundred ninety-seven".