205027130784 has 48 divisors (see below), whose sum is σ = 615081394368. Its totient is φ = 58579180032.

The previous prime is 205027130767. The next prime is 205027130797. The reversal of 205027130784 is 487031720502.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×205027130784² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152549277 + ... + 152550620.

It is an arithmetic number, because the mean of its divisors is an integer number (12814195716).

Almost surely, 2^205027130784 is an apocalyptic number.

205027130784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

205027130784 is an abundant number, since it is smaller than the sum of its proper divisors (410054263584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205027130784 is a wasteful number, since it uses less digits than its factorization.

205027130784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305099917 (or 305099909 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The spelling of 205027130784 in words is "two hundred five billion, twenty-seven million, one hundred thirty thousand, seven hundred eighty-four".