205824474728 has 32 divisors (see below), whose sum is σ = 386323291200. Its totient is φ = 102805003008.

The previous prime is 205824474727. The next prime is 205824474733. The reversal of 205824474728 is 827474428502.

It is a super-2 number, since 2×205824474728² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 205824474728.

It is not an unprimeable number, because it can be changed into a prime (205824474727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54262400 + ... + 54266192.

It is an arithmetic number, because the mean of its divisors is an integer number (12072602850).

Almost surely, 2^205824474728 is an apocalyptic number.

It is an amenable number.

205824474728 is a deficient number, since it is larger than the sum of its proper divisors (180498816472).

205824474728 is a wasteful number, since it uses less digits than its factorization.

205824474728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9081 (or 9077 counting only the distinct ones).

The product of its (nonzero) digits is 8028160, while the sum is 53.

The spelling of 205824474728 in words is "two hundred five billion, eight hundred twenty-four million, four hundred seventy-four thousand, seven hundred twenty-eight".