205461235072893 has 8 divisors (see below), whose sum is σ = 273953333131648. Its totient is φ = 136971646864704.

The previous prime is 205461235072861. The next prime is 205461235072931. The reversal of 205461235072893 is 398270532164502.

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

It is not a de Polignac number, because 205461235072893 - 2⁵ = 205461235072861 is a prime.

It is a super-2 number, since 2×205461235072893² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205461235072193) 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, 627271621 + ... + 627599082.

It is an arithmetic number, because the mean of its divisors is an integer number (34244166641456).

It is a 1-persistent number, because it is pandigital, but 2⋅205461235072893 = 410922470145786 is not.

Almost surely, 2^{205461235072893} is an apocalyptic number.

It is an amenable number.

205461235072893 is a deficient number, since it is larger than the sum of its proper divisors (68492098058755).

205461235072893 is a wasteful number, since it uses less digits than its factorization.

205461235072893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254925283.

The product of its (nonzero) digits is 21772800, while the sum is 57.

The spelling of 205461235072893 in words is "two hundred five trillion, four hundred sixty-one billion, two hundred thirty-five million, seventy-two thousand, eight hundred ninety-three".