204631026355 has 24 divisors (see below), whose sum is σ = 285820133328. Its totient is φ = 140233963968.

The previous prime is 204631026317. The next prime is 204631026367. The reversal of 204631026355 is 553620136402.

It is not a de Polignac number, because 204631026355 - 2⁹ = 204631025843 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157897 + ... + 658933.

It is an arithmetic number, because the mean of its divisors is an integer number (11909172222).

Almost surely, 2^204631026355 is an apocalyptic number.

204631026355 is a deficient number, since it is larger than the sum of its proper divisors (81189106973).

204631026355 is a wasteful number, since it uses less digits than its factorization.

204631026355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502723 (or 502716 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 204631026355 in words is "two hundred four billion, six hundred thirty-one million, twenty-six thousand, three hundred fifty-five".