1026205440205 has 32 divisors (see below), whose sum is σ = 1403232491520. Its totient is φ = 713154953280.

The previous prime is 1026205440191. The next prime is 1026205440223. The reversal of 1026205440205 is 5020445026201.

It is not a de Polignac number, because 1026205440205 - 2⁵ = 1026205440173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 830866 + ... + 1656124.

It is an arithmetic number, because the mean of its divisors is an integer number (43851015360).

Almost surely, 2^{1026205440205} is an apocalyptic number.

It is an amenable number.

1026205440205 is a deficient number, since it is larger than the sum of its proper divisors (377027051315).

1026205440205 is a wasteful number, since it uses less digits than its factorization.

1026205440205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826281.

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 1026205440205 in words is "one trillion, twenty-six billion, two hundred five million, four hundred forty thousand, two hundred five".