205385000822 has 4 divisors (see below), whose sum is σ = 308077501236. Its totient is φ = 102692500410.

The previous prime is 205385000813. The next prime is 205385000851. The reversal of 205385000822 is 228000583502.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51346250204 + ... + 51346250207.

It is an arithmetic number, because the mean of its divisors is an integer number (77019375309).

Almost surely, 2^205385000822 is an apocalyptic number.

205385000822 is the 242243-rd centered heptagonal number.

205385000822 is a deficient number, since it is larger than the sum of its proper divisors (102692500414).

205385000822 is a wasteful number, since it uses less digits than its factorization.

205385000822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102692500413.

The product of its (nonzero) digits is 38400, while the sum is 35.

The spelling of 205385000822 in words is "two hundred five billion, three hundred eighty-five million, eight hundred twenty-two", and thus it is an aban number.