205414888730 has 16 divisors (see below), whose sum is σ = 369798332904. Its totient is φ = 82154503680.

The previous prime is 205414888729. The next prime is 205414888741. The reversal of 205414888730 is 37888414502.

It can be written as a sum of positive squares in 4 ways, for example, as 134726436601 + 70688452129 = 367051^2 + 265873^2 .

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 7 ways as a sum of consecutive naturals, for example, 1355951 + ... + 1499810.

Almost surely, 2^205414888730 is an apocalyptic number.

205414888730 is a deficient number, since it is larger than the sum of its proper divisors (164383444174).

205414888730 is a wasteful number, since it uses less digits than its factorization.

205414888730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862961.

The product of its (nonzero) digits is 1720320, while the sum is 50.

The spelling of 205414888730 in words is "two hundred five billion, four hundred fourteen million, eight hundred eighty-eight thousand, seven hundred thirty".