205957578963 has 8 divisors (see below), whose sum is σ = 289063268800. Its totient is φ = 130078470888.

The previous prime is 205957578923. The next prime is 205957578979. The reversal of 205957578963 is 369875759502.

205957578963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 205957578963 - 2⁹ = 205957578451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205957578894 and 205957578903.

It is not an unprimeable number, because it can be changed into a prime (205957578913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1806645373 + ... + 1806645486.

It is an arithmetic number, because the mean of its divisors is an integer number (36132908600).

Almost surely, 2^205957578963 is an apocalyptic number.

205957578963 is a deficient number, since it is larger than the sum of its proper divisors (83105689837).

205957578963 is a wasteful number, since it uses less digits than its factorization.

205957578963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3613290881.

The product of its (nonzero) digits is 142884000, while the sum is 66.

The spelling of 205957578963 in words is "two hundred five billion, nine hundred fifty-seven million, five hundred seventy-eight thousand, nine hundred sixty-three".