204286940939 has 4 divisors (see below), whose sum is σ = 204565641456. Its totient is φ = 204008240424.

The previous prime is 204286940821. The next prime is 204286940969. The reversal of 204286940939 is 939049682402.

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 204286940939 - 2²⁴ = 204270163723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204286940969) 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, 139349159 + ... + 139350624.

It is an arithmetic number, because the mean of its divisors is an integer number (51141410364).

Almost surely, 2^204286940939 is an apocalyptic number.

204286940939 is a deficient number, since it is larger than the sum of its proper divisors (278700517).

204286940939 is an equidigital number, since it uses as much as digits as its factorization.

204286940939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278700516.

The product of its (nonzero) digits is 6718464, while the sum is 56.

The spelling of 204286940939 in words is "two hundred four billion, two hundred eighty-six million, nine hundred forty thousand, nine hundred thirty-nine".