204012541113643 has 4 divisors (see below), whose sum is σ = 204260429985808. Its totient is φ = 203764652241480.

The previous prime is 204012541113629. The next prime is 204012541113653. The reversal of 204012541113643 is 346311145210402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204012541113643 - 2⁵ = 204012541113611 is a prime.

It is a super-2 number, since 2×204012541113643² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204012541113653) 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, 123944434848 + ... + 123944436493.

It is an arithmetic number, because the mean of its divisors is an integer number (51065107496452).

Almost surely, 2^{204012541113643} is an apocalyptic number.

204012541113643 is a deficient number, since it is larger than the sum of its proper divisors (247888872165).

204012541113643 is an equidigital number, since it uses as much as digits as its factorization.

204012541113643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247888872164.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 204012541113643 in words is "two hundred four trillion, twelve billion, five hundred forty-one million, one hundred thirteen thousand, six hundred forty-three".