204940426667 has 2 divisors, whose sum is σ = 204940426668. Its totient is φ = 204940426666.

The previous prime is 204940426601. The next prime is 204940426681. The reversal of 204940426667 is 766624049402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204940426667 - 2¹⁸ = 204940164523 is a prime.

It is not a weakly prime, because it can be changed into another prime (204940426367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102470213333 + 102470213334.

It is an arithmetic number, because the mean of its divisors is an integer number (102470213334).

Almost surely, 2^204940426667 is an apocalyptic number.

204940426667 is a deficient number, since it is larger than the sum of its proper divisors (1).

204940426667 is an equidigital number, since it uses as much as digits as its factorization.

204940426667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 50.

The spelling of 204940426667 in words is "two hundred four billion, nine hundred forty million, four hundred twenty-six thousand, six hundred sixty-seven".